Yeah. I have this problem too. Many sites don't detect your
real IP (either because the coding is bad, or they don't realise some people are on proxies)
In any case, I think you have a good right to complain at ntl here. It's frustrating...
In terms of fixing it - theres not a lot any of us can do
It's all down to how ntl want to play it (the fact proxies do cause problems no matter what the benefits are) doesnt seem to interest ntl...