Sterling Payment Technologies charged my account after terminated service tampa, Florida

used credit card processor for 4 years. in last 2 years added compliance fee, reg.admin. fee, visa and mc fees i cancelled 11/29/12.  i talked to service rep. but they said i had to talk to retention dep. they transferred but i had to leave a message. no one called back. there was no activity in dec. 2012, but they debited my acct $75.90 i called and talked to retention dep on 1/14/13. 

i thought he said he would credit my account, because i called on11/29. when there was no credit, i called on 2/1/13. he said on 2/1 that he was to review on 1/14. now on 2/8 he said credit is denied, because no form was filled. i did not accept, he said he would have supervisor tricia keyes call on 2/11/13 i have not received any call as of 2/12/13 my belief is they do not want to respond. they want any reason to collect additional fees illegally.