I am writing to let you know, O2, that I find the Pay & Go tariffs for the iPhone 4 utterly disgraceful and a blantant attempt at forcing customers like me, who haven't even reached 18 yet, to commit to expensive long term contracts.
You can't seriously expect any customer to pay over £400 for a mobile phone only to have to pay at least £10 every single month just to keep the Internet working. On the iPhone, Internet access is essensial to the fundamental use of the phone! Having to pay a fee every single month just to keep it working after buying the phone outright for hundreds of pounds is a total rip-off.
Unless you fix the tariff, I for one am now leaving O2 for good, even if the other networks don't have much better deals, I will still move, simply because I don't want to feel I'm with a company that treats it's customers so badly.
Either fix the tariff or you will lose a lot of customers.