Very expensive for very poor quality

Bought a jean at the Menlyn branch for R800. For this price, you at least expect it to be good quality. This is not the case. A week later (keep in mind, only had it on twice), it started ripped. Took it back to the shop. The best they can do, is to send it to head office in Cape Town. After "fixing" it, they can courier it back to me. How should I wear a jean like this in public, what if it ripped while in a shop? They can't give a new one, or a refund. Will never buy there again. Will also never advise someone to shop there. Money wasted.