Namplik

So why do you comment here and only give false information? Thank you to @ClaytonSeymour , he is absolutely 100% correct!

You forgot to tell which operator you use? I use DTAC and and in their app you can activate/deactivate roaming/data/international call.

This is a concern for many expats/frequent travelers/thais currently living abroad and cannot go back to Thailand any time soon.... So what are your experience about this? I`m only interested in Thai bank apps, not online banking with a browser on pc/computers etc. So please answer accordingly. If you loose your phone with your thai sim card then you are basically <deleted> and cannot perform any action on your mobile banking. But that's another story. People may break their phones beyond repair or they just want to have a new model, and then you still have your thai sim in working order. But setting up your Thai bank app on your new phone is maybe not possible at all living outside of Thailand? Kasikorn: Not possible are my experience, you need to be on a Thai mobile network when setting up their app on a new phone. Siam Commercial Bank(SCB)? Bangkok Bank? Government Savings Bank(GSB)? TMB Bank? Krung Thai Bank? Bank of Ayudhya (Krungsri)?