I have a Bank of America credit card. On my XXXX statement, I show that I had paid my revolving credit balance in full and a bit more with no interest charges. For the XXXX statement period, I had paid {$700.00} less, bank statement showed that I had incurred {$37.00} in interest charges. For my XXXX statement, I had paid my open revolving balance in full again, but incurred more interest charges of {$63.00}, XXXX month in a row after having only XXXX calendar month of not completely paying the revolving balance in full once back in XXXX. Bank of America customer service dept 's service rep told me that the XXXX interest charges is a result of me walking into a banking center and making the payment and BofA taking time to process the banking center transaction, which is a bunch of baloney. With the service rep 's explanation not sounding right, we insisted on a manager, XXXX who eventually came on the call, to answer my question. He stated that the XXXX interest charge of {$63.00} was a result from a short payment back in XXXX. Okay we took that reply and we did further research and found out that not only were we charged in XXXX, but we were also charged in XXXX. We called back to the BofA credit call center and was told that the XXXX interest charges was also a result of the {$700.00} unpaid balance from XXXX. So we were charged XXXX for the same {$700.00}, given XXXX different explanations of the interest charges, and still have not resolved the issue of why there are XXXX interest charges when only once that the outstanding balance was short-paid ( short-paid balance was taken care of in the subsequent month ). 
