Shoddy business dealing

Abdul & Thando sold me an overpriced BMW 1series under false pretenses that Thando will renegotiate the car installment with the bank. I have only used the car from December 15th, it's a 2016 model but it costs R420 000. The car had an oil leak on the 07th of October and I sent Abdul an email to complain that for such an over priced product I should not be experiencing such problems, he kept on ignoring my emails and my calls. I than spoke to Naeem who said I should come to him with any issues. He promised to get to the bottom of my issue with Abdul an Thando for their shoddy business dealings and get back to me. I have been following up and he has opted to ignore me as well.