@Daniele **********
More often than not they’ll want a full 12 month printout of bank statements. Your local branch may not be able to provide right away so you have to apply from HQ so that may take some days.
Different bank branches may have options. That’s why it’s a good idea to visit the immigration office to check what’s needed.
Other than Jomtien that is. It’ll take a day just to find out from there.
Here’s hoping others with direct experience from there can fill in the blanks.