DEFECTIVE ENGINE KIA SPORTAGE 1.6 GT LINE

KIA SOUTH AFRICA CANNOT REPAIR VEHICLES AT ALL. MY CAR HAS BEEN IN 8 TIME FOR SAME ISSUE AND EVERY TWO WEEKS THE SAME ISSUE PERSISITS. THE ENGINE LIGHT COMES ON . THEY SAY IT IS FIXED AND BUT IT IS NOT THE ENGINE HAS AN ISSUE BUT AL LTHEY DO IS NOTHING.