Shocking service... Now what?

A year ago, I had my Volvo serviced at Tom Camphor Auckland Park. It was the worst experience ever. The right hand didn't know what the left hand was doing. Lack of communication, incorrect billing, incorrect parts, treated badly. The only thing I would go back there for, is the lady at the front desk and their coffee but that's all. Now my car is playing up again and I can't face taking it back to them. Any other suggestions?