(Your school's address)
REQUEST FOR PASS CERTIFICATES
I was a student at your school from (year) to (year). I would be grateful if you could advise me how I can get my pass certicates for class 9 (year) and class 10 (year).
I was enrolled with your school under the name (give your name here) and my contact is (give your address and/or email address and/or your phone number). Thank you.