I have a prepaid Verizon phone that I use for texting because my mom doesn't want to add features to the monthly phone she has for me. I chose the Unlimited Talk Plan which is a $3.99 daily charge when used for calling, but free Verizon-to-Verizon calls. The texting is $.01. I signed up for a $10 Unlimited texting Bundle, so instead of paying $.01 per text (about $15 every 2-3 weeks if you text a lot), I pay $10 every month. Last month I has $5 left on my account. Taking off that month's payment gave me $10.21. I just received a text message about this month's payment, telling me that my balance has expired. How is that possible if I have enough money in there for my next $10 payment?