I have a penalty interest rate for part of my XXXX XXXX card balance that is higher than the majority of my balance. It 's my understanding that my payments are supposed to be credited to the balance with the highest interest rate, but as I look at my statements from month to month, this is not what is happening. I have called XXXX XXXX multiple times but no one can explain to me how my payments are being applied to which balances. 
