Poor & Shocking Service from Sunglasses Hut

I went into a Sunglasses Hut branch (Mall of Africa) to purchase a pair, which they didn't have in stock. They advised me to buy online. Which I did. I bought a pair on the Sunglasses Hut website, which redirects you to Zando at checkout. Zando delivered a defective pair. The frames are bent, and the glasses are falling off. I went to Sunglasses Hut (Centurion Mall - Woolworths & Edgars), and they said they can't exchange the for because "I did not buy from them"... I took them through my purchase process which was THROUGH THE Sunglasses Hut website... one of the consultants insinuated that Zando/ TakeALot delivers "defects" from Atterbury to customers. How is a brand this big, having a 3rd party company excute part of their sales process so poorly, and still want to distance themselves from it, when the actual purchase is made through the Sunglasses Hut?! Extremely disappointed by this, and I'll be sharing this experience with everyone. No respect for customer's money. Not to mention that the stores have a number when you Google, but it doesn't even go through. From both Malls.