Do you have a $25 monthly plan? If that's what you have, $25 deducts from your account balance when your plan renews for next 30 days. So while if might show $0 balance, a phone will be active for 30 days.
Did a post have a solution that worked for you? Help other people find solutions faster by marking posts that helped you as an "Accepted Solution". Learn about accepted solutions: Learn More.
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.