Awful,Appalling Service

I have two mercs that I sent for service,the way they fixed my vehicles is **********. The Bryanston branch replaced the coolant pump (CF96JPGP) because I was getting a message that the coolant was low.The problem was never fixed as the message continued showing.I sent the vehicle to Northclicff,I was told that there was a leak in the radiator and had to pay for the work. they refeused to look at the service history. My BM51HP GP was producing a sound and I was told the right cam shaft was damaged.Northcliff replaced the right cam shaft, my wife drove the vehicle for about 5000km and the engine indicator started showing.We were told that the left cam was now damaged and need to be replaced. All vehicle incidents recur less 6000km. It's mindboggling that two divisions under the same company can't fix a problem the first time and are quick to mention money when you return your vehicle. Are you on a crusade to abuse and rob us our hard earned cash?Be warned,beware they are after your money and don't care about you. They lie, want everyone to be a motor mechanic. These divisions are riding on the Merc brand whilst providing pathetic service and extremely unprofessional.