Lindsay saker bloemfontein

Bought a new polo from lindsay saker bloemfontein on the 12 of September 2014. I had a problem with my radio since the 13th of September 2014. It is now 2 February and still not sorted out. Workshop can't give me a explanation for the problem. Very very unhappy. The car has been to the workshop numerous times. Its one story after another. I am so fed up with their bad service.