Im a U.S passport holder. So far I have a: visa exempt via air (extended 30 days), SETV (extended 30 days) & a land border visa exempt (used 5 days then left the country) Would a denial at the border be highly probable if I come back in soon on another visa exempt via air? Thanks.
TLDR : Answer Summary
A U.S. passport holder with a history of visa exemptions and extensions may not face a high probability of denial when re-entering Thailand on another visa-exempt entry. However, it is advisable to carry proof of funds, accommodation, and onward travel to minimize any potential issues at the border.