Terrible customer service

Took my MTB in to get gears adjusted, new valves and sludge. Also to have a pivot bolt replaced. Was then told, when booking in, to get a B-service. Basically they could only get the pivot bolt in 4 weeks time so I had to source, collect and supply. After collecting my MTB close to 2 weeks later also because they did not have rim tape in stock although my MTB was already booked in 1 week by now, the drivetrain was still greasy with dirt, as well with places under the frame and fork uncleaned with dirt. After contacting the owner and explaining the situation, I insisted on some sort of refund. After many back and forth emails he said he will give me a full refund (close to R1000) but I insisted on accepting half because of parts used and labour. To this day I'm still waiting on a reply as well as a refund. This dates back to the 21st January, almost 4 weeks later. Table View branch