Philips Avent Natural Newborn Starter Set (PP) SCD201/01

I purchased this starter kit for my newborn, in overall the glass bottles is definitely what I needed for sanitary purposes but! Every single bottle top will not close anylonger. When tightening the top to the bottle all of them go round and round without ever tightening. Why is that? They all leak because they don’t seal. I’ve only used them for two months now, it doesn’t seem like they should have this issue. I understand if it was just one lid (nipple top) but it’s all of them. I payed over $50 for this not to work so suddenly. Please help? It’s like they all striped to seal the bottle completely. I purchased this starter from amazon and it’s been longer than the return policy and now they won’t accept them back, that’s not fair.