Chev Utility More problems than anything else

Needed a secondary vehicle so we opted for pre-owned. Found this fabulous dealership in Goodwood N1-city called Fuzion pre-owned. Test drove a 2010 Chev.utility with 111000km on the clock and there was a few odds and ends to fix, and so the dealership did.

Had the vehicle for 3days than had problems with oil leaks. Took the vehicle back and the issues was addressed( they had the vehicle for almost 2weeks) Then had the vehicle for 4days and had issues with the throttle body, gear linkages, brakes etc. They( dealership agreed to have it sorted) They had the vehicle for 3weeks and guess what, after getting it back with an invoice to prove all the parts that were repaired/replaced, now after 4days in my possession, the vehicle is over reving by itself and fusion( dealer) is not replying to any of my mails, even sent him pictures of what the vehicle is doing... Wow great customer s****s....