One very unahppy customer

We've rented a car with Sani from 31/10/2024 - 02/11/2024. The car was returned with no damage and the fuel tank were filled. The deposit of R3800 was paid on the day of check out. We still haven't received our deposit, it's been 3 weeks and SANI customer services are of no help, they are referring the issue back to the bank. The bank has got nothing to do with it and is now investigating potential ***** as they don't automatically just reverse the money back into your account. I see there are a lot of other customers having the same issue. I wonder what will happen if you never phone them? The money will never be reversed I suppose... Don't deal with them!