I'd like to switch to the 1 gig $45 promo plan that expires on May 3rd. However, when I go to the "Switch Plan" section of my account, the plan does not appear. I'm guessing this has to do with the fact that I'm on the old tab system and that I need to pay that off before I can access the promo plan. Is that correct? If so, is there any way I can pay off my tab to switch to the promo plan? Many thanks.