Will I lose my balance? I have a $30 per month prepaid plan. I have $150 active balance. So that is 5 months. Do I lose my balance since I have a balance of over 90 days (5 months is over 90 days of an active balance)? Or can I keep adding refill cards and it all rolls over? I have another $150 to add to my account but do not want to lose any of my balance.