I had that problem when selling a painting for 20k in Vienna on Sunday, then driving back home to Switzerland. When I wanted to put the money in my account the told me to better do it in 3 parts bc 10k up would need paperwork to show proof of origin.
Something in your logic doesn’t add up. Can you explain the following?
When I assembled my paperwork for the revenue department for 2024 I had Bangkok bank AND kasikorn statements showing international transfers.
So it did not depend on which bank was the first in a transfer.
And I strongly believe that kasikorn was the main partner because all transfers were instantaneous while transfers to Bangkok bank mostly were executed over night, arriving a few minutes after 14:00.
Plus: in English the wise transfers were coded like “ref ….” (Don’t remember exactly) while in Thai they were “foreign” or “international” depending on how I got the statement.