They ask for a bank account, when they accept Wise, they can accept any company or private person where you can park money that is accessible immediately.
I think that is not the point, Wise is not a bank and that means you have to do research to decide about risks, it does not have a license as a bank issued by a national bank, so without doing research you cannot say anything about reliability. If you accept Wise, you should accept any company that keeps money on an account.
I do not say Wise is not OK, I use it myself very often, but there is no independent criterium to check reliability of Wise.
For the extension of my visa exempt in the past, I had to pay when I handed in the forms for processing, I paid 2000 THB and after half an hour I got back my passport, receipt and change.
Maybe procedures are different at different offices? My experiences are from Hat Yai
I only have experience with extension of visa exempt in Hat Yai, but there I needed to pay in cash at the officer when handing in the documents, so before decision.
Did they request for drivers licenses, or did you just upload far more than asked, which caused extra attention and now they ask for something extra because they just want to see the application is real and you reply