I have t-mobile, sony ericson w300i model. I have just got round to having the Wap/Internet/GPRS whatever it is called on it!!!! I have been using the internet on it and it hasn't been charging me, then it charged me for some of the internet usage, and then it didn't again!!! I am confused!!! When I looked up the tariff online for this price plan it said that WAP calls couldn't be made!!!! Now, I am VERY confused!!! How can this be, I HAVE been using WAP!!!!!???? What is happening??????!!!!!!!!!!