The only drawback is this last for a day, however for those unused text will be carry over if you re-activate again for another day of astigtxtall before your expiration.
Cool in a way that it is accumulating, uncool is that you'll be needing a constant subscription of 15 php everyday. I wish it is always accumulated regardless of the expiration. ;)
To check your TM astigtxtall balance:
To subscribe for TM astigtxtall:
To check or TM balance inquiry for your "Real" balance: *102#