Hi,
I am a UK resident. I have just received my 'Non-immigrant O' visa today. It is 'Valid from: 18th April 2025' and 'Valid until: 16th July 2025'
My question, is the 'Valid until date' the last day I can enter Thailand or the last day I can remain in Thailand?
Can a 'Non-immigrant O' visa be extended for 30 days in Thailand?