Bank of America Credit Card Complaint

Bank of America Credit card department,

Balance transfer California

I made a payment of $950.00 in - - and realized that I did not have funds in my bank account. I called Bank of America to cancel the payment where I was informed they would give me a refund of $950.00 on - -, -. Bank of America incorrectly categorized this refund as a purchase made on the card and subsequently charged me interest for the next consecutive 3-4 months because of the way payments are applied. Spoke with three different managers and three different representatives each month and they all made notes in my account detailing that I should not be charged interest because it was a bank error. The last manager noted that the $950.00 was going to be lumped into the balance transfer promotion and this problem would go away. After 3 months, the problem remains and I keep getting charged interest. I paid the promotional balance in full that ended on - -, -.