I nearly moved back to Three recently, but in the end opted not to, which seems lucky in light of this. This is somewhat similar to the reason I left them back

I nearly moved back to Three recently, but in the end opted not to, which seems lucky in light of this. This is somewhat similar to the reason I left them back in 2009. They were surreptitiously redirecting me to a different version of Hotmail by fiddling with DNS records. This in turn broke Hotmail on my early HTC phone (unless I was connecting over WiFi as that would bypass their bad DNS). It may be little better even now, but back in those dark days the prospect of getting support to recognise what this even meant was nigh on impossible - at the point of cancelling my contact to leave them as a supplier, they interjected that they could offer the same services at £4 a month (insanely cheap) which totally missed the point: what good is a service no matter how cheap, if it's fundamentally unusable! It's a shame, because in many other respects Three are one of the more differentiated suppliers here and they seem to offer more useful services with fewer gimmicks than the others in the UK.