again you keep on posting lies! No immigration officer ever can ask you for showing your bank account. Only if you apply for an extension or a visa you have to add to the application your finance.
Why the admins here do not stop the wrong info and lies? It's ridiculous that this is going on.
Only a court order can force anybody to show your bank accounts.
at border they not allowed to ask for bank statements and it never happens. They can may be ask for proof of 20.000 baht but no statements and at no border at no country this will happen.