Talk:Thailand/@comment-26897571-20150816214735/@comment-24682153-20150817063827

When your 1.5 GB high speed bundle has run out (by time, or by having used up all data), you can buy a new package. For this you need to have the price of the new bundle on your account. To check balance, type *123#. So you may top up first and then buy a new package by entering the activation code of the bundle, that you'd like to add.

The moment you buy a bundle, the price is debited from your balance. So if you still have anything left after you have activated a (new) bundle, you can use this credit for calls, SMS or whatever you like.