@Jack ***************
Long story short, basically any time I needed OTP or 2FA codes from my American banks and institutions, I was unable to receive them because I had my AIS sim active at the time and I had “parked” my American phone number .. some banks refused to communicate with me via email .. I know that others carry two phones with them to Thailand , one for Asian use, and one to get codes from the USA.. I did not do that last time, and for my next trip I considered it, but I just thought that having one phone with two eSIMs was a better option .