Broken car

We took our car exactly a year ago to suspension man in Roodepoort to get a motor overhaul it cost us R15 000 plus a new radiator and an intake as the intake was broken. When we went to go fetch the car after 4 months we were promised an year warrenty and did not even get that. As the car broke again we took a look at what was wrong. No nuts and bolts were tightened on the gearbox the motor was not even cleaned as promised. So if i can advice do not take your car there.