I bought the tall colour pot last year (or maybe longer). After 3 uses the non-stick came unstuck, but it was after the 30 day MBG. I'd seen loads of reviews saying the same but QVC flat-out refused to take it back so I contacted KR directly. They were great, immediately asking for my details so they could post out a replacement.
After advice here, though, I contacted Q again, stating the consumer regulations and they eventually gave me a refund.
I didn't bother asking KR for a replacement after Q's refund as I didn't fancy eating non-stick coating with my food, but it is nice to see a company with good customer services out there.