Im thinking of getting a cell phone and theres a current promo of 600 minutes for 39.99, regularly 400 minutes....but im not sure if i will use them all and may settle fore a lower plan later..ie the $29.99 with 250 minutes....im gonna get AT&T will they charge me a hefty sum if i get the 600 min plan but want to change it to the 250 plan later on if i find i dont use it all? And if so about how much?
