Denied accommodation while I paid and the problem was their POS

On Saturday the 12 July I wanted to book a room, I got there presented my bank card for payment and I was told it declined whilst I got an sms from the bank that it was successful charged. Lerato the lady who was on duty gave me the run around saying they didn’t receive the funds and she is 100% certain that they will return back to my account. She called her manager Mapula who corroborated her story in saying there are no funds on their side and there is nothing they can do, I was left stranded without a room at night even when my bank was charged. It is Monday and I haven’t received anything back. I wouldn’t recommend this establishment as they tried charging the same amount multiple times at once.