@Kirsten ********
I think that's what I said.
Your UK bank wires 65k a month to Thai bank. Once a year your Thai bank gives you a letter confirming. CM immig occassionally want copies of BB pages showing 65k+ dep FFT to back up letter. ( happened twice in 20 years ).
Was a time when Consul, or Embassy prov norirized letter simplifying things.
Those days gone for many.
I don't remember ever dep 800k, but that was 22 years ago.
Everything here changes, and every IO is different.