Unreasonable Requarements to get service

Hi, I just had an infuriating experience at Incredible connection. I bought a iPad Body Glove cover at Gateway Incredible connection shop 2months ago and the cover is completely falling apart. when I wanted to return it in another Incredible connection shop in Galleria Mall which is closer to my residence they basically told me I had to drive 40km to Gateway to get any help because I bought the product at Gateway, and for me to receive any help they need the box it came in.

I find it completely unreasonable to ask a customer to travel that far for help he can receive closer to home, with the fuel price being what it is, that is not good customer service. Secondly, I don't see why I need to provided packaging the product came in to get assistance if I have the purchase slip. Isn't that the till slip the legal proof of purchase?