BB Bold 9700 :: Need Separate Internet Data And Packages?

I want to buy the 9700 on t-mobile (UK), but they tell me I MUST have the blackberry service (which is an added 5 GBP/month), and if I want to use the internet then I must ALSO get the (unlimited) internet option too. They tell me, I cannot have the unlimited internet package alone, as the phone will not work properly - basic functions like phone calls and SMS messages will work, but I will not be able to use the internet without the blackberry service.They say, in order to use the internet, I need the internet bundle PLUS the blackberry service.I only need internet package as I can log onto gmail/hotmail via the web and check my emails. I don't need the push email service. Other carriers dont seem to require two separate bundles - it all seems like the same thing, but it is not very clear.

So does the info t-mobile have given me sound correct? It seems like they just want to get an extra five quid out of me each month..??!! The blackberry service is AUTOMATICALLY added when you select the phone online, but they tell me I can cancel it whenever I want, although that will mean I can't use the internet, even if I have an extra internet bundle.