Thanks in advance and apologies if this has been asked a thousand times. My friend just flew in on a Lithuanian passport with no visa and received a 15 day stamp. Can this be extended at an immigration office like the regular 30 day stamp I get (UK passport) and if so will the extension be for 15 or 30 days? ๐
TLDR : Answer Summary
A Lithuanian passport holder arriving in Thailand receives a 15-day visa on arrival, which cannot be extended at an immigration office. An extension for this visa type is not permitted, unlike the regular 30-day stamp available to some other nationalities. As of April 14th, Lithuanian citizens are granted a 30-day stamp upon entry, but this does not apply to arrivals before that date.