Don't bother. It's seriously not worth it.
I'm still waiting for my refund and haven't left any eBay feedback for them yet. They'll probably contact me and ask me to change it when I do.
The guy on the phone seriously told me that they have never had a problem with one single unit. I mentioned to him a few I knew of personally and he started to change his tune.
David - interesting to hear they have a Facebook page. I'll be having a look.