Poor service

I took my faulty LG washing machine to have it repaired 10 Feb and promised to have it back and repaired in two days. I requested that i be contacted first with the full quote before commencing. I was told to pay the R180 workshop fee when entering the premises before being asked what the problem was. I phoned two days later to find out what was happening and was told that they waiting for the spare parts and would contact me once they get it. i received no phone calls. I then phone Mon 15 Feb to find out whats happening. They again promised that they would uplift the parts and phone me before commencing the repair. I eventually received a call at 16h00 Mon 15 Feb to tell me the job is complete and the cost is R520. I asked that they should have contacted me first as requested. They came out with 101 excuses why they could not contact me before repairing the machine. They had the machine for nearly a week after being promised to get it in two days. The machine was dirty and has a dent in it on closer inspection at home. Their attitude was there was no intention compensating me in any way for the poor service.