Our bath taps were fitted five years ago by some unknown plumber. He got them from Wolseley. Now they've started dripping I looked into buying new cartridges / valves. Natural first stop was Wolseley website as the taps are their own brand so their parts easiest to identify and be a fit. I was annoyed to then find that only people with trade accounts are even allowed to search for parts on the website! Though they're happy to sell us new taps. At that point I noticed the prominent "10 Year Guarantee" symbol on the box we had kept. The product leaflet gives no terms or conditions for the warranty. Their site says nothing about guarantees other than the usual 12 months. So in theory they can't now impose limitations on who claims for what in that ten years. It can be argued that cartridges are just wear and tear, but in that case, maybe exclude them or don't offer ten year warranties? I haven't contacted Wolseley, because a total disassembly and clean seems to have fixed the problem for now. (Thanks YouTube!) I wondered what experience others have had of claiming on long warranties when they are the end user, rather than the direct purchaser holding a receipt.