My daughter has a mobile phone and every week we top up 50 baht on her 12call AIS sim card, and every week they block her from dialing out if we do not top up every week, even though she has over 100 baht credit on the sim she cant dial out unless we top up more. I tried DTAC and found out they do the same.

When you top up using True they give you one year to use your credit in most cases and maybe for new users at least a month. Much better than Ais OR dtac

Stay away from AIS and DTAC, what a rip off.. They still send on average 3 promtion texts to her everyday promomoting other compaines servies, so that means there getting paid from these compaines, so it's not like there not making money from these low use accounts. I have now switched all the family to TRUE, what other choice do i have? AIS and DTAC are basically forcing there customers to use there credit up when they dont need to or they get blocked.

If you have to buy a sim card for your children buy TRUE and stay away from DTAC AND AIS.

Good advice.

I had the same problem when I first acquired a pre-pay simcard, but I can't remember who the service provider was. I don't think it was DTAC, because I subsequently got a "Happy" simcard from them which gave up to one year's usage, although this seems to vary a bit. Every time I top up, it just boots the validity a few months further on, so I've never had a problem. That said, I don't have a heavy usage, and only use a phone for calls and texts. I guess the deal you get depends on the cost of the calls, but whatever that is in my case it's not a significant item.

I Have an ais payg sim and have never had this - my credit lasts somthing like 6 months regardless of how often i top up. can you change the package?

Every company has different promotion schemes.

Might be that your daughter signed for the 50 Baht a week scheme.

Yermanee

On DTAC there is a code you can input that extends your credit validity for 30 days for a fee of 2 baht.

Extend Validity – Press : *113*[number of days 30/90/180]*9# Example: *113*180*9# for 180 day extension. 2 Baht per month.

So on DTAC you can have a phone that receives unlimited call and texts for 24 Baht per year.

My wife called them, says nothing to do with the package, she got them to extend for one month at a cost of 30 baht off her credit, that was about a month ago, i never used to have this problem with my ais sim as well, but i used to top up 500 or 1000 baht at a time, i think this is standard practice for low top up/low use accounts.

Im happy with TRUE , at least i have the peace of mind that if my daughter needs to call she can. Very bad business practices form DTAC and AIS

On DTAC there is a code you can input that extends your credit validity for 30 days for a fee of 2 baht.

Extend Validity – Press : *113*[number of days 30/90/180]*9# Example: *113*180*9# for 180 day extension. 2 Baht per month.

So on DTAC you can have a phone that receives unlimited call and texts for 24 Baht per year.

thanks for the info, thats good to know, but with TRUE it costs nothing, also AIS seem to charge more than DTAC, 30 baht for the month extension,

Yes, AIS charge 30 baht to extend validity for 1 month,a nuisance for an infrequent mobile phone user.

On DTAC there is a code you can input that extends your credit validity for 30 days for a fee of 2 baht.

Extend Validity – Press : *113*[number of days 30/90/180]*9# Example: *113*180*9# for 180 day extension. 2 Baht per month.

So on DTAC you can have a phone that receives unlimited call and texts for 24 Baht per year.

I extended for 90 days recently without too much difficulty using this method.

I go bkk about 3 times per year. Each time topup 80 baht at 7-11 for my true prepaid card and it extend the validity by 1 year

I like DTAC - they give me 7000 baht credit limit. But not a top up.I give my children money - they know how to use a payphone.

My DTAC extends the validity with every topup to one year.

Just choose the right tariff. You can change yours at a nominal fee.

My DTAC and AIS gives me a years validity every time i top up - must be the package you are using.

A friend from abroad asked me a few months to top up his AIS account, because it was about to expire.

I phoned AIS 1175 and asked how much top-up was needed to last for another year.

THB 100 would do it; "Promotion Misterrr!"