A design fault in the Sonicare handle (the pin that holds the brush becomes loose) has meant I've needed several replacement sets after the first purchase. After contacting Customer Services today, it seems that the warranty is only for the first-time purchase. Any replacement handle isn't covered, so it's at their discretion whether to replace. All items supplied should be fit for purpose but aren't. Clearly, they need to fix the design fault as several other people have the same complaint. I'm out of pocket with brush heads I can't use but more importantly it's an environmental disaster with so many unusable and unreturnable gadgets lying around. Philips - do better!