Many people come to Thailand and use their bank card from overseas. Do not do that Thailand has an amazing point system for credit and debit cards.
My friend have an American Express card from Thailand and he have given one extra card to his friend. This friend is using the card when he is traveling and in the company. They have now got so many points that can get free first class tickets back and forward to the USA.
For me I can not get a credit card but even my debit with the bank UOB visa card have given me a big Samsung flat screen TV. I buy everything with my visa card from 7/11 to airline tickets and the points are just ticking in.
Check different cards for the best deals on points but I can vouch for UOB debit card is really working and it does not cost you anything.
