unable to repair to original condition

Bought a pair of Tom Ford sunglasses on 12/12/2015 at sunglass hut Edgars store in sandton. I mistakenly sat on them and returned them back to the store to see if they could be repaired back to their original state. Jimmy, the sales person whom I bought the pair through attempted to repair them however failed to adjust the ***** on the right arm of the sunglasses so it remains loose. I was then told to go to optic centre to have the ***** tightened or call sunglass hut customer service for a quotation on fixing the loose *****. I bought the sunglasses for at least R4500 why on earth should I pay extra for a ***** that cannot seem to be fixed or even go through the pain of walking from one optic shop to the other? Such a disgrace that you have sales people that are eager to make the sale but useless at customer care. I will never buy from sunglass hut again. To even think that this was my 3rd purchase. Brands like Tom Ford should not be sold by you!!