Withheld deposit, no invoice - Still waiting responses

I have rented a car from Thrifty last November. On our second day of our rental, our car was broken into at a shopping mall. Thrifty mishandled this situation by forcing us to pay a locksmith to unlock our damaged car door. Thrifty contacted a locksmith for us and asked us to communicate with said locksmith to solve our own problem with their vehicle. We were then told to drive the car back home without being able to lock it. The next day we were told that we cannot keep the car and should not have called a locksmith, that we did not follow protocol which was to have a replacement car sent to us immediately. We were not informed of this and we asked to immediately drive to OR Tambo Airport (approximately 50km away) to return the car with a broken lock and to fetch a new one. I spoke to Rowan Kellerman and was told that the mismanagement of the situation would be investigated and our locksmith fee returned eventually. More than six months later, numerous phone calls and emails to Thrifty at OR Tambo, we were not able to have this situation resolved. We have also not received our deposit back nor an invoice for the damages and balances for our rental. I find this atrocious customer service and will not be using Thrifty again nor would I advise anyone to even consider renting a vehicle from them. Rowan Kellerman has failed to respond further.