iPhone 12- MagSafe silicone case peeling….again

Anyones iPhone 12 silicone case started peeling on the corners? Purchased my phone and case and within 2 months left corner started to peel, took it back and they replaced the case.

6 months later the same thing has happened again but now in two places and they have informed me no longer in warranty and it’s simply wear and tear. The same issue but no replacement. These cases cost £50 and don’t even last the length of a 12 month warranty just don’t expect this quality from an apple product, love the fact I was told “there are other cases that are much more protective” oh thanks for the tip!! I would rather have returned the item the first time round and invested in one that will last. Very poor quality for an item that is meant to be protecting a £600+ phone….