Removing content lock on T Mobile

[GeetTallBird]

I have an O2 iPhone 3gs with a T mobile Internet dongle, (there's no O2 3G here so I got mobile broadband through T mobile)
There are sites that I am trying to access-cosmopolitan.co.uk for instance- that I can't get on! T mobile say I have to prove I'm over 18 (even though I'm more than twice that :)) and after I've entered credit card info I still can't access anything.
It still says "we don't believe you're over 18, please go into a T Mobile store".
Help!

I got this too. I had followed the instructions but nothing ever happened and then I got the message to go to the shop. I didn't - it just sorted itself out, so fingers crossed that yours will too.

Ah thank you, I'll wait for a few days and see!!

I just went straight to the shop and they sorted it out then and there

I shall try to find a t mobile shop then :)