Your PASSPORT is required to purchase a SIM card.
Do not forget your PASSPORT.

If you need a 4g SIM card for internet use, this is a good place to get one.
They should also be able to set you up with a short-term INTERNET PACKAGE.

AIS Phone Shop,
Lotus Shopping Centre

(Use the LOTUS Superstore entrance, not the entrance displayed in the directions.)

Tourist SIM cards can also be purchased at many 7/11's.

SIM card TOP UPS are available at machines outside of most mini marts.