Is it really? I wouldnt no - im useless at keeping track - got conned into buying it in the first place - but saying that my bills are onyl �40 with 3, whereas they're about �140 with t-mobile.
If you took it out sometime in August then you will be able to upgrade sometime in July, if you call 333 they will be able to tell you, or I could find out for you (I am a 3 seller).