Shocking Service from ACS Technicians

This serves as a warning to all who seek out the service, or more accurately lack thereof, from ACS Technicians. My dishwasher went on the blink so I Googled and found ACS. My initial interaction with Romeo was fantastic and I thought I had made a great decision. Carrington then arrived to take a look at the dishwasher and advised that it was the Motherboard that needed to be replaced. I paid the R300 up front for the call out. I then received a quotation to replace the Motherboard at a cost of R3200, and paid a 50% deposit to ACS for them to go ahead and order the part and repair my dishwasher. I then had to follow up with ACS to find out when they would receive the part and conduct the repair. Finally, Carrington arrived to install the Motherboard. I became very concerned when he called on me to come and provide him with settings information whilst trying to repair the dishwasher. Surely as an expert "Technician" he should've known! Finally he gave up and said they would have to collect the dishwasher and take it to their factory in order to find the fault. By now the communication had almost vanished from their side. They then collected the dishwasher and I had to follow up numerous times with no reply from their side. I finally gave up and told them to keep the dishwasher for parts and refund my deposit. Eventually this was agreed to...but no refund as yet. It was agreed to on the 10th Dec. I am livid...I have never had such shocking service before.