Can I use two bank accounts in different currencies for my visa application in Thailand?

The ability to use confirmations from two different currency bank accounts (euro and PLN) for a visa application can depend on the specific embassy requirements. Some embassies may allow for multiple accounts, while others might be more strict. It's advised to include a cover letter explaining your situation if you have dual accounts. If you're concerned about currency conversion losses, consider maintaining your accounts as they are if the embassy permits it.