Money mysteriously disappearing from my prepaid phone. having read a bit and logged into AIS website. it seems I have the AIS3G added service which eats money. However it's an old style call phone , don't want the added service . How can I cancel. Can't seem to do online or they are trying their hardest to make it really unobvious.

You need to call AIS call center on 1175

have you considered calling AIS?

nah, that would make sense.

just stop paying and buy a new sim from a different co.

you could try calling 1175 ..... and stop whining ...

Go to this website: https://aiseservice.ais.co.th/eServiceWeb/

Put in your telephone number and they will send you an SMS with a one-time-password (OTP) that will allow you to log in online and manipulate your AIS account.

*129*1# Send turns data off (this is a USSD command sent to the network to perform a network-based action)

*129*2# Send, turns data on, again at the network.

You can also call, email, IVR, use the web-based app, or the Android app.

http://www.ais.co.th/roaming/3g-postpaid/close-open-data.aspx?language=en (says postpaid but works on prepaid, I used it yesterday for a friend's phone)

http://www.thaivisa.com/forum/index.php?app=core&module=attach&section=attach&attach_id=316696