That's K BIZ (9for small businesses), you probably have K PLUS (for consumers)
K PLUS
What is the transaction limit for transfer, top-up and payment via K PLUS ?
The initial transaction limit per day is 100,000 baht. Customers may increase the daily limit to a maximum of 2,000,000 baht (no daily limit for transferring to your own account on K PLUS).
https://www.kasikornbank.com/en/personal/digital-banking/kplus/help/Pages/modify-transfer.html