Worst ever after sales customer service- Pathetic

Worst ever after sales service. I purchased a vehicle from we buy cars JHB South, the vehicle was A rated with NO mechanical defects. After purchasing the vehicle I realised there was a noise from the suspension. I took the vehicle the very next day to an RMI approved workshop for inspection as a purchase the vehicle on a Sunday and they confirmed mechanical / suspension defects that was NOT disclosed at the time of purchasing the vehicle. I logged a concern with we buy cars within 24 hours informing them of the defects. They promised feedback withing 48 hours of which they did not keep upto. 72 Hours later I had to call and demand feedback as they initially refused to update me on my concern status. I eventually received an e mail requesting documents / quotes which I sent through immediately. There again I was promised feedback within 48 hours. After no feedback I went into the branch to enquire on the status and after some time and persistent I was informed telephonically that the concern has been approved and the process to pay for the repairs cost will be done withing a couple of days. To my surprise 48 hours later I receive a WhatsApp message to say the concern quote has been rejected. I call we buy cars to enquire as to why the change of decision and no one in the customer care department was able to share details I was merely told I need to wait for the formal letter to be sent via e mail as the matter is with the legal department (which I am yet to receive). This is totally unfair practise and pathetic customer service not disclosing mechanical faults on a vehicle there after not willing to assist the customer effectively to resolve the concern. Legal processes will need to be adopted and name and shame will take place . Extremely disappointed expected more professional service from such a company.