anyone using the Dtac postpaid phone packages

I am currently on a pay as you go thing buying the 100baht reload cards if I need them

have been looking and prices seem OK I think but when they mention "Unlimited" WiFi do they mean "unlimited internet usage or is their a limit set on how much you can use the Internet?

Dont want to get huge bills at the end of the month cause I left my internet on all the time as thats how they catch you out most of the times.

DTAC were doing a few months back Iphone 5S one year contract at 699 per month, pay 6 months in advance and with the phone was 15,000..unlimited internet and I think 500 minutes...

This is what I use for grandchild - do not believe she exceeds the high speed internet allowance but would not be any extra change if she did - just lower speed. It is set up as a recurring change each month so you never get hit by internet charges if you forget - just be sure to have the 199 baht in your account at that time each month. She has been using for about a year and seems to work well.

https://www.dtac.co.th/en/prepaid/products/recommended-pro.html

Smartphone Monthly 199

100-min FREE calls to all networks, 500 MB internet at maximum speed of 42 Mbps (After complete, able to use internet at maximum speed of 128 kbps).

100 min All networks

500 MB

All networks 1.5 baht / min

25 GB photo and video storage

Valid until 31/08/2015

Activation shortcut *103*116*9# dial

Service fee

199 baht / 30 days

You don't need PostPaid. You need to buy a bundle that suits. You can do that on prepaid, as suggested above.