Poor Rotten Service

On the 7 June 2019 I took my car to the car wash and when I swiped my money Acc debit card it showed an error message but the money went out of my account. Upon getting the first error message I swiped the card again thinking it was a network problem but still got an error message. I withdrew cash and paid the car wash and thought that like every normal acc the money would reverse but it didn’t. I called in and I was sent to go fill in a dispute form at the branch. Today is 8 July 2019 and the money has not been reversed when I call in I’m taken from one pillar to the other post they are telling me that the money has to be cleared by the merchant whereas the money didn’t even appear on the statement of the merchant because it was never received. This is not a bank I even want to close it the transaction fees are even high. I need assistance because I want my money