Received an email promo (currently pay as you go) to switch to monthly at @25/mth for unlimited talk and text. When I click on the link it doesn't seem to be for this specific promo. Also if I try and change the plan through the account, this one is not offered - don't want to click on a higher monthly plan if I'm not given the option to enter the promo code. Received the email on July 12th - don't think it has expire yet. Thanks.