Vechicle problems

I bought a black Chevrolet Spark from Imperial in Randburg. I collect the vechicle on Saterday 10 October. Monday 11 October I phone the sales person Bradley to complain about the vechicle that the wheel alignment is not right, the wheel bearings and breaks is faulty and the wiper blades is broken. After a few calls I also talk to the branch manager. I take the car for wheel alignment on Wednesday 14 October which they will refund me on the money I pay which I never received till today. On Friday 30 October one of the wheels lock and cause a accident into a barrier. Now my car is also damage because of the problems that I report. Imperial refuse to pay the damage to car. I got the car for 7 weeks now and cant even use it now already for 4 weeks. According to Imperial the car is going through road worthy what I cant believe because of all this faults. I still make calls to them but no service only promises that they will come back to me. if it was not for this problems the car wouldn't be damage of a accident. They must fix the damages and the faulty problems on this vechicle. the badest service I ever got from a Imperial company.