Capital One Debt Collection Complaint

Capital One Debt collection department,

Credit card Cont'd attempts collect debt not owed Debt was paid New York

I have been paying the original loan now for over 12 years. Although they gave me a hardship plan I know that they continue to make monies from I debt already paid. How much interest are these companies allowed to extort. I am considered a high risk patient I no longer stand to be used. My initial sebt started in 2003.