I have a blackberry storm that i had service on in the past bute did not pay the bill and let it get sent to collections so therefore, my number is not recognizable for verizon. when i tried to call global support to get it unlocked, they told me i had to have a working number in order for unlock. is this true? i am wanting to use my sim card thru at&t in my storm so it wouldnt be a waste of money. can someone help me pleaseee??! thanks!