现在手机最便宜的PLAN多少钱？如果想换充值卡打的话，是不是一定要换SIM CARD，换电话号码？
Thanks!
好像。。。。。。。。
如果是m1话，应该是26吧。ok21flex.(but u have to use student promotion letter)
if u want to use top-up card, u need to change the no.
and M1's top-up card is best(i think)
if u want to use top-up card, u need to change the no.
and M1's top-up card is best(i think)
Huasing Association 1999 - 2013