Non desclosure

i bought a car from GWM finance almost two weeks back , i was told that the car was in good condition , i drove the car for about a week . The car started having problems. i went to the owner of the company i bought car form ,<br> owner said i should take the car to his mechanic to check what problem is. he said the problem was fixed , i should drive the car for few days to see if the problem comes back . i drove the car for about 50km everything started experiencing the same problem. i then called him he said business is closed for the day and since the car was financed its no longer his problem, i should take it up with wesbank.