For those who say just change it in the app or that they transfered 1 million, how long ago was this? My experience is that K Bank changed policy last year to allow transfers up to
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per day. At that time I had two monthly rent payments to make, totalling over 50k, and I had to send one payment on the 30th and one payment on the 1st. Agent inside the Khon Kaen bank office told me this. She even called the call center and had them explain it to me in English. At that time they said it was for foreigners only.
Then three months ago my Thai partner sold a business she was running for 90k. The Thai buyer had to pay over two days, 45k per day. So at some banks at least, this policy has been extended to Thai people as well.