That is very interesting information. I've been struggling with finding a way to avoid keeping 400K baht in my Thai bank. If I pass away, my Thai wife will need access to that money (I've willed it to her) but that access will take time and a lot of hassle for her. If would like to just give it to her now and use another means of satisfying Thai Immigration's financial requirements.
I've used Wise for years and was thinking about doing a Wise Transfer to Bangkok Bank every month but my Visa advisor told me Chiang Mai Immigration wouldn't accept Wise transfers as such proof. Doing monthly wire transfers from a U.S. bank to Thailand is possible but expensive and much more difficult than using Wise because I cannot receive the OTPs my U.S. bank will send to my stateside phone.
Anyway, Jonathan Swift, those details aren't important for this conversation - which Immigration office are you using? Do you have any info that suggests I could use the Bangkok Bank's app to do international wire transfers?
Many thanks for your help.