Renew-It Rivonia Not Worth It

Late last year, following an accident in which my left hand back door was impacted, I took my car to Renew-It Rivonia to get fixed. When I got my car back, my aircon which had been working perfectly before hand was not working, and my left rear door was locked and unable to operate properly with the other doors with the central locking. They say they didn't touch my aircon, I have no way of proving that, except that it worked perfectly before I went there, and now it doesn't. It seemed promising that they would assist me with rectifying the issue with my rear back door not being aligned with my cars central locking, however, attempts to reach out to them have proved fruitless. All in all a terrible experience. I wouldn't recommend them... EVER.