Capital One Credit Card Complaint

Capital One Credit card department,

Credit card protection / Debt protection California

I had - accounts with Capital one credit card company.I contacted them and requested full payoff balances and on - - 2015 I payed off both accounts in full.I then recieved a - dollar credit from capital one.stating I had over payed on the account.And now I recieve a bill for - when I contacted them they stated they had been a slight mis calculation.Also during the entire time I had the accounts most of the payments made were not credited to the account.Therefor I was paying - the amount owed all of which I have documented proof.