Bedfordview Imperial - Total lack of service

I puchased a used AutomarkToyota2010PradoVXLandcruiser from Toyota Bedfordview on 30/04/14.From there I had to return it 3 weeks later-it was not starting and it was veering badly when I braked.I requested then if it was possible to reverse this deal,I was very unhappy with the vehicle,I was told that this was not possible.On 15/11/14,returning from Pretoria the car just switched off.The indicators stopped,then the lights,then the power steering & then the power of the vehicle disappeared.I got it the further 35 odd km's home as it was late in the evening, I had my wife in the car with me & did not deem it safe to stop along the M2. I was then informed that it was an alternator problem & I booked the car in for a major service while it was there so we could get everything solved one time.I paid R16k+ to receive my car back on 9/12/14, upon driving it home I noticed it was over revving&not changing gears.I calledToyota to ask if the vehicle was test driven&inspected before release which I was informed it was. I returned the vehicle on the 12/12/14. The car was only 15 days past warranty&had total failure of gearbox&alternator. Please can you resolve this issue or reverse the deal.