Johan Opperman Motors

I bought a 2008 Hyundai Elantra from this company at Friday 24 January 2020. I only find out on Monday morning when I took the vehicle to a mechanic and try to reset the idoling of the car that the idoling valve is faulty. I then went to Hyundai motor dealers to get a quote from them and was very surprised to find that it cost R8500. The owner of the dealer then send me a message to say that he don't make much on thus deal and that he think we must cancel the deal. I then informed him that I thirst want the money back in my account. He then said that he don't have that amount of money and therefor will get back to me after a discussion he will have with the person that looked at the vehicle on our behaves. We are now left with the mess and are SASSA Pensioners that can't afford to pay that amount of money as explained to the seller on our behalf. Can someone please assist.