Tyndall Stole My Money

I took out a car loan with Tyndall FCU, and they required a draw against my checking for the monthly payments. I paid off the loan within 2-3 months and asked for my account to be closed. Instead of closing my account, they drew another $90 from my checking, but assured me the overpayment would be refunded. I waited for the refund and then forgot about it. In the meantime, Tyndall transferred the money to a "savings" account, and began drawing a $5 fee against my money because less than $100 was in the account. When I remembered the overpayment, Tyndall had eaten $25 of my money and refused to refund their "fees" for my overpayment. I went up the chain of command, all the way to the president, but they refused to refund my money. I have asked an attorney to file a claim in small claims court for the $25.  He said that if anyone else has a similar complaint, I can file a class-action lawsuit. Please respond if you have had fees taken from your account after overpaying a loan. They had no right to transfer my money into another account and begin drawing "fees" to steal it.