i recently just turned 18 and have been using verizon prepaid for some time now. when i went to the verizon store, they told me that i would have to put down a $400 dollar deposit to open up a new line (for contract AND month-to-month). i was considering sprint, but i am hearing that their service is spotty and unreliable. so what about at&t or t-mobile? which one would i have a better chance of getting a contract with? (without the ridiculous deposit)