I am sure this has been asked many times before, but I have a headache trying to find it right now so I am just going to ask again.
I entered on 45 Day Visa Exemption from the US with a US Passport, It expires on the 6th of July. Can I do the Covid Extension on this Entry Stamp and if so, how, and where is the best place on Koh Samui? Also would it be best to do it on Monday the 5th or is that too risky considering I'd want to reschedule my flights before then, is it instant?