I just discovered a way to not loose my minutes. A day before they expire pass a load to another phone. Say you pass 30 min. That will give them 15 days to use them or have them send them back to you and you will have 15 days to use them. If you send 75 you will have 30 days and so on.

This wad done on Globe

I love it when you can beat them at their own game.