Woodforest charged me twice for the same transaction

I have been with Woodforest National Bank for over 5 years and I faced a few problems over the years but recently I was charged twice for the same transaction and took money out of my account without informing me. They aren’t even willing to cancel the transactions and the amount is $348. They told me that the money will be reimbursed in 60 days but now it has been around 90 days and there is no trace of my money. One of the most terrible banks and service.