Bad Customer Service and Workmanship

I had an very Bad Experience with Bosh Services Durbanville Auto repair shop, with my Car,.. Very, Very POOR Service.. My Car was back there 3 times and I still got it back with problems... It only needed a service but cost me R30,000 at the end of the day... They dont contact me for days and every time I get it back there are another problem. I am very disappointed in there Customer Service and work in General....