I suspect the main reason is they are lazy/don't know how to fill in the forms, there is no reason why they can't open an account, they will just come up with a different excuse( need work permit, need mobile phone contract etc etc, There are usual travel /visa agents in most places, they might do it you will need to ask. Nakom Phanom is a bit remote for most agents, are there any expat bars/restaurants expats can have a lot of local knowledge,( they probably had the same issue themselves) they would know ant local facebook groups whatapp etc, it is annoying but just keep plugging away