Buying iPhone 4 in UK - reservations?

[Cujo]

Hallo guys,
I'm from czech republic and I'm visiting UK at the end of month.
And i've been thinking about buying iphone 4 in London, and I'm having a problem - how can I "reserve" my iPhone, so I wouldn't have to go through all applestores in london and probe wheather they have or have not some iphones at stock.

So - Is there any way, I can reserve my phone online, pay for it and just pick it up at one of London's apple stores, when i get to UK?

Thank you for comments

 

[Gregoris]

just ring them and order it and then order it for when you will be in the uk like the day before you go

 

[Cujo]

just ring them and order it and then order it for when you will be in the uk like the day before you go

thanks, but can't I make online reservation and pay for the phone at the same time?

 

[Gregoris]

yes you have to pay for it first, it says on the website 3 weeks wait atm