Appliance repair Scam

My Snowmaster icemaker packed up and I phoned Centurion Appliance Repairs. They came out the same day to look at the machine and Dean informed me that they have to take the machine to their workshop to repair. According to their invoice, they replaced the compressor and fixed the PC Board and charged me R1800 for it. They did not want me to do an EFT, but insisted on cash. They brought the machine back the next day, switched it on and i could see that the icemaker was icing up as was expected. Dean then left. An hour later the machine had still not produced any ice, the machine had stopped and both red start and stop lights came on. I phoned Dean and informed him that the machine is in fact NOT fixed. He said he will come back to us. The following day, he had still not shown his face and I called again, this time, no answer. Later on I called from another number, and again he said he will come and check. Needless to say, he has still not been here. I fixed the machine myself, by cleaning a little filter which was clogged up. I feel like i have been taken for a ride.