File this under extremely annoying. According to T-Mobile, all systems for re-upping users prepaid phone minutes (online, phone-based, and refill hotspots) are not only currently inoperable, but have not been functioning correctly for the past three days. As a result, no minutes can be added to customers phones, but T-Mobile says that users of its prepaid service can continue to make calls from their phone with no charge until at least 11 pm tonight, even if they have no minutes remaining. The company hopes to correct the problems they're having by this evening, and we'll bring you more info as it becomes available. In the meantime, use this freebie to catch up with grandma!
Update: Just to clarify, as far as we know this problem is affecting T-Mobile customers in the US. Also, the representative with whom we spoke said that calls would be free until 11 pm -- we have yet to hear an official announcement, however, so proceed with caution.