diff --git a/locale/bg.po b/locale/bg.po
index b593f21580..1b76823a4d 100644
--- a/locale/bg.po
+++ b/locale/bg.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 #, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
@@ -41,7 +36,7 @@ msgid "Due Date"
 msgstr "Дата на изпълнение"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/ca.po b/locale/ca.po
index a69a0becda..8bf7180a24 100644
--- a/locale/ca.po
+++ b/locale/ca.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Carta de reclamació"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Import"
@@ -33,11 +28,11 @@ msgstr "Descripció"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Due Date"
-msgstr "Data de venciment"
+msgstr "Data venciment"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
-msgstr ""
+msgid "Fees:"
+msgstr "Despeses:"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
@@ -51,7 +46,6 @@ msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr "Avís recordatori"
 
-#, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "s"
 msgstr "s"
diff --git a/locale/cs.po b/locale/cs.po
index 7192d4563d..a65490ad48 100644
--- a/locale/cs.po
+++ b/locale/cs.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr ""
@@ -36,7 +31,7 @@ msgid "Due Date"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
@@ -50,7 +45,3 @@ msgstr ""
 msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr ""
-
-msgctxt "report:account.dunning.letter:"
-msgid "s"
-msgstr ""
diff --git a/locale/de.po b/locale/de.po
index 5b6f03a315..b7a6262e62 100644
--- a/locale/de.po
+++ b/locale/de.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Mahnung"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Betrag"
@@ -36,8 +31,8 @@ msgid "Due Date"
 msgstr "Fälligkeitsdatum"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
-msgstr ""
+msgid "Fees:"
+msgstr "Gebühren:"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
@@ -51,7 +46,6 @@ msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr "Erinnerung"
 
-#, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "s"
 msgstr "s"
diff --git a/locale/es.po b/locale/es.po
index 232a06b2f1..c334488105 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Carta de reclamación"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Importe"
@@ -33,11 +28,11 @@ msgstr "Descripción"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Due Date"
-msgstr "Fecha de vencimiento"
+msgstr "Fecha vencimiento"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
-msgstr ""
+msgid "Fees:"
+msgstr "Gastos:"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
@@ -51,7 +46,6 @@ msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr "Aviso recordatorio"
 
-#, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "s"
 msgstr "s"
diff --git a/locale/es_419.po b/locale/es_419.po
new file mode 100644
index 0000000000..71c505e830
--- /dev/null
+++ b/locale/es_419.po
@@ -0,0 +1,47 @@
+# 
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:account.dunning.level,print_on_letter:"
+msgid "Print on Letter"
+msgstr ""
+
+msgctxt "model:ir.action,name:report_letter"
+msgid "Dunning Letter"
+msgstr "Carta de cobro"
+
+msgctxt "report:account.dunning.letter:"
+msgid "Amount"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Date"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Date:"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Description"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Due Date"
+msgstr "Fecha de vencimiento"
+
+msgctxt "report:account.dunning.letter:"
+msgid "Fees:"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Pending Payments Received"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Reference"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Reminder Notice"
+msgstr ""
diff --git a/locale/fr.po b/locale/fr.po
index 63bb313009..a0f45e2d41 100644
--- a/locale/fr.po
+++ b/locale/fr.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Lettre de relance"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr " : "
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Montant"
@@ -36,8 +31,8 @@ msgid "Due Date"
 msgstr "Date d'échéance"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
-msgstr ""
+msgid "Fees:"
+msgstr "Frais :"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
@@ -51,7 +46,6 @@ msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr "Avis de rappel"
 
-#, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "s"
 msgstr "s"
diff --git a/locale/hu_HU.po b/locale/hu_HU.po
index 17e14dd870..36cb04bae1 100644
--- a/locale/hu_HU.po
+++ b/locale/hu_HU.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr ""
@@ -39,7 +34,7 @@ msgid "Due Date"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/it_IT.po b/locale/it_IT.po
index 955d1f0983..4052d15c14 100644
--- a/locale/it_IT.po
+++ b/locale/it_IT.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Sollecito"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Importo"
@@ -36,8 +31,8 @@ msgid "Due Date"
 msgstr "Scadenza"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
-msgstr ""
+msgid "Fees:"
+msgstr "Spese"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
@@ -50,7 +45,3 @@ msgstr "Riferimento"
 msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr "Avviso promemoria"
-
-msgctxt "report:account.dunning.letter:"
-msgid "s"
-msgstr ""
diff --git a/locale/ja_JP.po b/locale/ja_JP.po
index aa57d3e9a4..35bdfb84a3 100644
--- a/locale/ja_JP.po
+++ b/locale/ja_JP.po
@@ -8,7 +8,7 @@ msgstr ""
 
 msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
-msgstr ""
+msgstr "Dunning Letter"
 
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
@@ -30,6 +30,10 @@ msgctxt "report:account.dunning.letter:"
 msgid "Due Date"
 msgstr ""
 
+msgctxt "report:account.dunning.letter:"
+msgid "Fees:"
+msgstr ""
+
 msgctxt "report:account.dunning.letter:"
 msgid "Pending Payments Received"
 msgstr ""
diff --git a/locale/lo.po b/locale/lo.po
index 05992b16e3..c9199b8f70 100644
--- a/locale/lo.po
+++ b/locale/lo.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "ຈົດໝາຍເລັ່ງທວງ"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "ມູນຄ່າ"
@@ -36,7 +31,7 @@ msgid "Due Date"
 msgstr "ວັນທີຕ້ອງຈ່າຍ"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/lt.po b/locale/lt.po
index 7192d4563d..a65490ad48 100644
--- a/locale/lt.po
+++ b/locale/lt.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr ""
@@ -36,7 +31,7 @@ msgid "Due Date"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
@@ -50,7 +45,3 @@ msgstr ""
 msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr ""
-
-msgctxt "report:account.dunning.letter:"
-msgid "s"
-msgstr ""
diff --git a/locale/nl.po b/locale/nl.po
index 81ab00f8f6..7fc352715e 100644
--- a/locale/nl.po
+++ b/locale/nl.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 #, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
@@ -40,7 +35,7 @@ msgid "Due Date"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
@@ -55,7 +50,3 @@ msgstr "Referentie"
 msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr ""
-
-msgctxt "report:account.dunning.letter:"
-msgid "s"
-msgstr ""
diff --git a/locale/pl.po b/locale/pl.po
new file mode 100644
index 0000000000..35bdfb84a3
--- /dev/null
+++ b/locale/pl.po
@@ -0,0 +1,47 @@
+# 
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:account.dunning.level,print_on_letter:"
+msgid "Print on Letter"
+msgstr ""
+
+msgctxt "model:ir.action,name:report_letter"
+msgid "Dunning Letter"
+msgstr "Dunning Letter"
+
+msgctxt "report:account.dunning.letter:"
+msgid "Amount"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Date"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Date:"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Description"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Due Date"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Fees:"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Pending Payments Received"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Reference"
+msgstr ""
+
+msgctxt "report:account.dunning.letter:"
+msgid "Reminder Notice"
+msgstr ""
diff --git a/locale/pt_BR.po b/locale/pt_BR.po
index d14c64ab80..ed53a6c66c 100644
--- a/locale/pt_BR.po
+++ b/locale/pt_BR.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Carta de Cobrança"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Montante"
@@ -36,7 +31,7 @@ msgid "Due Date"
 msgstr "Data de vencimento"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/ru.po b/locale/ru.po
index 2211e3f2d8..e0320c3498 100644
--- a/locale/ru.po
+++ b/locale/ru.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 #, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
@@ -41,7 +36,7 @@ msgid "Due Date"
 msgstr "Срок сдачи"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/sl.po b/locale/sl.po
index 846f59c584..c7627da9d7 100644
--- a/locale/sl.po
+++ b/locale/sl.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr "Opomin"
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr "Znesek"
@@ -36,7 +31,7 @@ msgid "Due Date"
 msgstr "Zapadlost"
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
diff --git a/locale/zh_CN.po b/locale/zh_CN.po
index 594fe0f531..c0fd14f273 100644
--- a/locale/zh_CN.po
+++ b/locale/zh_CN.po
@@ -10,11 +10,6 @@ msgctxt "model:ir.action,name:report_letter"
 msgid "Dunning Letter"
 msgstr ""
 
-#, fuzzy
-msgctxt "report:account.dunning.letter:"
-msgid ":"
-msgstr ":"
-
 msgctxt "report:account.dunning.letter:"
 msgid "Amount"
 msgstr ""
@@ -24,9 +19,10 @@ msgctxt "report:account.dunning.letter:"
 msgid "Date"
 msgstr "日期格式"
 
+#, fuzzy
 msgctxt "report:account.dunning.letter:"
 msgid "Date:"
-msgstr ""
+msgstr "日期格式"
 
 #, fuzzy
 msgctxt "report:account.dunning.letter:"
@@ -38,7 +34,7 @@ msgid "Due Date"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
-msgid "Fee"
+msgid "Fees:"
 msgstr ""
 
 msgctxt "report:account.dunning.letter:"
@@ -52,7 +48,3 @@ msgstr ""
 msgctxt "report:account.dunning.letter:"
 msgid "Reminder Notice"
 msgstr ""
-
-msgctxt "report:account.dunning.letter:"
-msgid "s"
-msgstr ""
diff --git a/setup.py b/setup.py
index c1dacfd8f6..6a4c1d5c40 100644
--- a/setup.py
+++ b/setup.py
@@ -96,6 +96,7 @@ setup(name=name,
         'Natural Language :: German',
         'Natural Language :: Hungarian',
         'Natural Language :: Italian',
+        'Natural Language :: Polish',
         'Natural Language :: Portuguese (Brazilian)',
         'Natural Language :: Russian',
         'Natural Language :: Slovenian',