Huricaine cell phone - Consumer Complaint for PEP STORES

My wife recently bought a hurricaine cell phone on the 25 march, from pep cell in uitenhage mall, found problems with it and took it back on the 26 march, the store told her that they wont exchange or refund it, they told my wife to buy data so they could check it, which was appauling, the manager claimed it was ok, but when she got back home it was the same as yesterdy, my wife came home and tried using the phone, and its still giving problems, goes off by itself, lags, amd jams up, realy a crap phone, my wife waisted R450! Shes going to throw it away, after this experiance im not suppoeting pep anymore and will pass this on to everyone i know