The Thai Ministry or Foreign Affairs issued today a travel advisory for all Thai nationals. They should only travel to Thailand if absolutely necessary. This may mean that the embassy has a reduction in staff and/or consular services (who also issue visas) might be focusing more on affairs related to Thai nationals in Cambodia.
You entered “visa exempt”. Visa on arrival is a different thing. There is a kiosk with chairs for waiting before the immigration line at the airport. This is for nationalities that are not allowed to enter visa exempt. The visa on arrival gives those nationalities 15 days
just seems strange how your story changes. That is all. I think you need to talk with the embassy, but it sounds like you need to open up a US bank account or fly somewhere else and reapply
Your story comes across as fishy. You are saying here “just back in the US for a visit right now”, but on the other page you state you have “moved” back to the USA for half a year