This is to all the guys posting earlier about the sollution to AIS not giving us much validity recently.

There is a plan called Sawasdee that gives you full 1 month validity on one 100 THB recharge.

It is mentioned here at the bottom of the plans table:

http://www.12call.ais.co.th/en/Content/Pro...on_Current.html

but clicking on further details brings you to a site all in Thai no matter what.

You got to be brave, dial *777 and follow prompts to select the Sawasdee. The voice prompts have English version and surprisingly work letting you quickly select what you need. I can now confirm to you after getting on this plan I have just recharged 100 THB and got a 1 month validity!!! :-) :-) :-)

Remember now you can buy validity, Mao mao 30 baht get more 30 days + 30 minutes call free.!

Just give 1175 a call.

I have the Fit250 promotion. (POST PAID)

Fix charge 250 baht, call any network Free 300B (call 1.50B/min), EDGE/GPRS 4 hours, 50 SMS and 10MMS per month.

average cost is 430baht per month, but with my usage the amount should be closer to 700baht per month.