Nissan Morgan Welkom defective bakkie

My mother bought a Chevrolet Utility bakkie in February and in July the bakkie broke down and was taken to Nissan Morgan in Welkom of which it took more than 40 days to repair the vehicle and they gave us the run around in those days as it was excuse after excuse my mom then informed Wessel via email from the dealership In terms of Section 56(2) of the Consumer Protection Act 68 of 2008 (“CPA”) a consumer may return goods to the supplier, without penalty and at the supplier’s risk and expense, if the goods fail to satisfy the requirements and standards contemplated in section 55, within terms of Section 56(2) of the Consumer Protection Act 68 of 2008 (“CPA”) a consumer may return goods to the supplier, without penalty and at the supplier’s risk and expense, if the goods fail to satisfy the requirements and standards contemplated in section 55, within six (6) months after the delivery of such goods. He then refused the request saying that it's impossible and the only thing he could do was to buy the car back obviously for a lesser price which would mean my mom would be left with paying back the bank. The car was eventually fixed and my mom took in August it's now October and car broke down again its spitting oil on spark plugs and doesn't have power and also leaking oil, car is now at the dealership and as always Wessel is ignoring our emails.