I paid $10 on my Go phone last week now it says "The account has been disconnected."

[jdelajfari1615]

So long story short. I have had this number since 2006 so i wanted to keep the number around for a while, and i have another phone that's getting paid for me, so i just put money on my go phone account every 2 months to keep the number active. Well it went through last week when i went to the At&t store and put $10 on it. and i didn't touch it for a few day's. and now it's saying it's disconnected. Im kinda Mad because Im pretty sure the canceling date was set to another date when i refilled.... what do i do? will they give me my number back if i call customer service? I want that number still and now it seems i not only lost that but the money i put in it every time. I basicly paid AT&t $10 every 2 months to keep my number, since i never even used it and i let the money expire....