Purchased faulty vehicle

I bought a Mahindra on the 05-02-2020 with as little as 32000kms, the same evening got stuck re could not insert into gears, the same on the 6th, it was conveyed telephonically to sales executive, the same on the 7th, could not get hold of sales executive, had to call him Saturday after hours Saturday 8th. Monday the 10th send email, clutch was faulty, apparently fitted with a new one. Received car back on Monday 17th, drove car on the 18th and same problem with additional lack of engine power. I sent email to cancel the deal on Monday 18th, as I bought a vehicle that is a faulty, still no reply from dealership owner Dawie Steynberg, nor sales executive Eugene De Klerk, as email was sent to both. I had enough and I want my money back as a faulty car was sold to us, not blaming anyone but the service sucks. If they purchased a faulty car from previous owner, then they should take responsibility and refund me. I also approached Absa branch that gave me the finance and hopefully, they will put pressure on the dealership. Absolute not acceptable!