You go tomorrow to your Thai bank (assuming that you have anything in a thai bank) and tell the people at the counter that you want to withdraw a few million baht in cash.
And please, tell us all where and when so that we can have a good laugh with you.
Every Thai (and many foreign banks) bank requires that if you want to withdraw that amount of money, you have to ask it a few days on forehand.
I don't dispute that, what I disputed was your claim that to withdraw more than B26,000 you need to go to the bank and explain why you need that much ("I am limited to 26,000 Baht/day. If I want more, I need to go to the Bank and explain why I need so much money"). You do not.
"go tomorrow to your Thai bank and tell the people at the counter that you want to withdraw a few million baht in cash ... Every Thai (and many foreign banks) bank requires that if you want to withdraw that amount of money"
Nonsense. As this thread relates to only B3m in withdrawals, I'm assuming that, by "a few million baht", you mean around three million. No banks' branches would have any difficulty in accommodating a withdrawal of just B3m without notice. There are no restrictions, neither are explanations required for withdrawing one's own money.