For the past several months, Bank of America Credit Card Services has been miscalculating finance charges and misapplying payments between XXXX different categories of regular purchases, cash advances and balance transfers. The allocations are not in accordance with federal guidelines. I contacted Bank of America on multiple occasions and each time received a different explanation as to how they achieved these magical calculations. I had the issue escalated to a special team of managers who finally admitted there was an error with how their system is calculating finance charges but they also explained that I was the only consumer that had brought this to their attention. They asked for one weeks time to look into the issue as they were going to have to escalate the problem even further internally. My ultimate concern is that this issue is on a grand scale and that XXXX of other consumers are being affected. I plan to initiate a class action investigation into the issue but wanted to file any formal complaints necessary immediately. I am not implying nor do I have any evidence suggesting that Bank of America has acted maliciously, however it is deeply concerning that it was so difficult to get anyone within customer service to recognize or admit there was in fact an issue. I had to literally teach them why their multiple explanations were incorrect and I do n't believe the average consumer would be as persistent. The representatives all seemed confident in their inconsistent explanations regarding the calculations so this could certainly be a training issue on top of the finance charge calculation error. When the latest manager realized I was correct in MY calculations, she seemed shocked herself. 
