If the husband is an American citizen and we are registered as married in Thailand, he wish to change from a tourist visa to a Non-O (Marriage) visa. If he wants to change it in Thailand, he needs to have 400,000 baht in his bank account in Thailand. However, foreigners who enter on a tourist visa cannot open a bank account. How can he prove his financial situation? I'm looking for information from people who have gone through this process."