I bought a unlocked iphone to save on the extra $50 a month for my unlimited plan.I did'nt mind paying the $30 data plan but this was unavailible to me on my old plan.I've been using my unlocked iphone for a couple weeks and i checked my account settings and they have on there that i am using the iphone.I had a samsung rugby.They also asked me to change my puk code??for my unlocked sim.Does anyone know what this will do?I dont mind using my iphone without data...but i am hoping my bill does jump up $80 dollars a month to us a iphone.