Can I Use My Monthly US$ Transfers to Extend My Type O Visa Without Updating the Bank Book on the Application Day?

UK passport holder visa Type “O” since 2009

I have a separate US$ account, with BKK Bank, that has US$ transferred, into it every month on the 15th of the month, via SWIFT, from my foreign bank as a pension. In excess of the 65,000 baht.

I would like to use this as a basis for extending my type “O” instead of keeping 800k in the bank as I have done in previous years. I have the book bank updated the 15th of every month that shows US$ incoming, I will have 12 confirming e-mails showing the SWIFT transaction (probably of no interest) and the letter from the bank similar to that as if it was a baht account.

Since there is incoming movement once a month on the 15th, if I go to CW on say the 18th or 19th to extend my stay do I need to update the book bank on the day I go, or is the pattern of the previous 12 months self evident? With a baht account I can transfer into it 100baht on the extension day and update the book bank that day. Can’t do that readily with a US$ account, don’t have any US$ and the books are different size from baht.

So, will the previous day book bank update suffice or am I in a bind?