If there is a new credit card company that bought your credit card account from another credit card cmpany, it can add and delete charges from the balance allegedly owed. Whether or not it is allowed contractually under the credit card agreement that you signed for the card or the laws of your State is a different matter.If you are making the minimum monthly payments on the credit card per each month's invoice which is typically the accrued interest that is arising on a monthly basis, at worst scenario, the amount owed would remain the same with the exception of the monthly interest.It sounds that you need to speak with a representative of this credit card company to see what you can do to reduce the debt and eliminate the frustration you have over the situation.