Poor service and attitude

Visited Goldwagen on 2015-12-12 to purchase a new radiator. Was assisted by Jaco the Sales person who measured the radiator in my vehicle and confirmed that he had the stock so i paid for the item and was assured it was the correct item. I then proceeded to take my vehicle to a mechanic to install the radiator and was billed R1000.00 for the service. Once the vehicle was stripped he established that the part was in fact not the correct size or spec for my vehicle. He then replaced all the parts removed and advised that he would have to bill me again for labour should i bring the correct part. I returned the part to Goldwagen and spoke to Barney the Manager who did not even apologise for their error or offer a solution, instead disappeared to the back office never to be seen again. All Jaco could do was refund me for the part's cost but this still left me with R1000.00 out of pocket due to him giving me incorrect part. I am totally disappointed at the lack of service or empathy by Goldwagen Staff and Management. I wondder if i can approach the Consumer Protector for this matter?