Hi, hoping some more knowledgeable folk around can help me! Bought my son a pretty expensive coat which hes had for about 11 weeks. The zip has fallen apart. 2 of the teeth have come off and half of the pulling thing isnt attached, so the coat is useless. I've contacted the maker who tell me it's a wear and tear problem caused by using force and I need to return this at my cost for their experts to examine it. No mention of what happens after this if they decide it is misuse. I feel a zip that falls apart that quickly means the coat isnt of an acceptable quality. I have mentioned the 2015 sake of goods act but they're still saying I need to return it and its likely to be wear and tear. So, my question is, what are my rights here? Am I entitled to a refund or replacement? Thanks