Any suggestions for the proper/polite way to tell the clerk at the dtac shop that I need to register my sim card? I'm sure I could make myself understood but I'd like to know the correct way to say it. Thanks for your help.

S

I need to register my sim card?

ผมอยากซื้อซิมการ์ด

phom yak seu sim card

(i want to buy a sim card)

ผมต้องการที่จะลงทะเบียนซิมการ์ด

phom dtong karn tee ja long tabian sim card

(i want to register sim card (and give DTAC ID card, passport..in case you are in the south 3 provinces ))

in case you are a woman , use dee chan ดิฉัน or chan ฉัน instead phom

Thanks BambinA!