I'm VERY ANGREY. I get the new Galaxy S II today from http://www.onestopphoneshop.co.uk/ and left it to charge. To my horror I've descovered that there are to vertical lines on the screen, can I go to a car phone wearhouse store and change the phone or do I have to send it to them?

No. They trade as different companies.

You couldn't return a T-Mobile phone to an Orange shop, the same way you can't return a PC World purchase to Curry's!

Doesn't work like that I'm afraid.

Oh right, I wasn't sure what they were, just that they were linked to carphone.