Polish Military Records:
The British Ministry of Defense is the official custodian of all Polish military records from 1939-1946. They have almost all records of all Polish soldiers who have served under the British Command. Only relatives and the soldiers can obtain a copy of these records in the English language. Replies are usually within 30 days. Be sure to include your relationship with the soldier, or a soldiers document and give as much information as you can to help them search their files.
The MOD still gives free British medals to relatives and soldiers. Poland has stopped doing this in 2000 and as a result they are very rare and hard to find.
Ministry of Defense
APC Disclosures 5 Polish
Building 28 B, RAF Northolt
West End Road
Ruislip, Middlesex, England., HA4 6NG