Refusing to refund / exchange within guarantee

Pick n Pay Hypermarket Brackenfell - bought a snake board for my son on 6 July 2015. Kept slip. Bearings are shot and wheels keep hooking. 26 August 2015 I took it back to shop with slip. They confirmed it has a 3 month guarantee. They tell me they can only exchange / refund once they have spoken to their supplier. What on earth, do I as the end user, have to do with the arrangement between PnP and their supplier. Neville had a bad attitude with this whole situation. I posted the complaint on PnP FB page. Desiree Snyman rep**** requesting my number and that was that, I have not heard anything since.<br> <br> I wanted to exchange it however after this experience I will not purchase from PnP again. I want my money back. <br> <br> I will continue to tell everyone about my experience until I get my money back!