HSBC UK has two world debit visa and master cards , they can be used in major thai banks ATM
The master one which link to UK multi currencies account (including Thai bth in uk account, if you have there ), without handling free when using major Thai banks ATM
The visa one also can be linked , has a better exchange rate if you don’t have bth in uk account, but need to pay 250 Thai bth handling fee with Thai ATM (whatever withdraw 100 to
*****
bth)
Cheaper way is to bring cash and exchange in Thai SuperRich
Best way but complicated is to exchange pound to bth by FX broker, then withdraw into above cards linked acoount.. no spread in exchange rate, way better than wise and revolut
Easiest way is the ewallet , like True Money …. 7-11 also accepted
Btw you might want to ask the bank as many of staff don’t have idea of above debit cards
I got mine visa in UK as well as master in HK