Hi, I need a tot sim card but can't find any tot stores in bkk (preferably asok area).

I already looked in most major shopping malls to no avail. Thanks

You need to go to a TOT service center. A few locations are The Mall Ramkhamhaeng (opposite side of street from The Mall store), Nong Linchi Rd where it meets Soi Suan Phlu, Chamchuri Square, The Mall Thapra, etc. The ones located in malls are open later in the evening and weekends. The service centers that are free standing have regular business hours (close at 4:30 p.m.). They should have both postpaid and prepaid sims.

You can also get a sim from one of their MVNOs, such as IEC3G, I-Kool 3G, I-Mobile 3GX, etc. The I-Mobile are the easiest to find as you can buy them at most 7-11 stores for prepaid. The best deals are from I-Kool for prepaid but their sims are hard to find. You can get them at some stores in MBK or Fortune IT Mall. I got mine at Fortune on the 2nd floor at a store called Focus Vision (next to big Samsung store).

Here are some links to help you.

TOT service center locator: http://www.tot.co.th/index.php?option=com_maps&view=maps&Itemid=82〈=en

List of MVNOs and their website links: http://www.tot3g.net/PromotionDetail7-EN.aspx?rand=634554313043795130