I bought a flexible hose off eBay seller and after about 7 weeks the hose burst. I contacted the seller and I sent pictures etc as requested. The seller sent a new hose to replace first burst one. The second hose burst after about 6-7 weeks and the seller is saying the hose only has a warranty for 3 months from purchase? So the seller is saying it’s out of warranty from first purchase, should this not be from when I received second hose?