who cares?
a) you should check your the9 account from time to time, when you feel you played a lot already...
b) always have at least ONE recharge card (for emergency) at home , or use credit card for online payment (my choice)
c) even if you dont check EVER on the web, you get a message from wow (in EVERY language client), saying you only have 30 minutes of game time left (and after that periodically).
big deal...