I bought a Parktool cyclone chain cleaner a while back from Wiggle...the clip system was a bit dodgy and eventually the plastic that kept it in place gave way rendering the clip useless. It was still well within warranty and I could have returned it to Wiggle, but I thought I'd speak with Parktool direct. They were great and agreed to look after me without needing to post anything back...I simply took photos of the broken tool and they promised to send me a new one.
4 months later I still hadn't received it so I sent them another email and they were shocked I hadn't received anything - I hadn't kept an eye out for it either as they hadn't told me when they were going to send me one. But they promptly despatched another one which arrived quickly. One brand new cyclone chain scrubber and I note that they've improved the clips on it so that the problem I experienced earlier wont likely happen again.
Big thumbs up in my book