Does anyone know what the situation is if you go to immigration MORE than 3 days before your visa expires for a renewal, if you will get it? I am on a non-b going to extend. Thank you.
TLDR : Answer Summary
In Thailand, it is generally required to apply for a visa extension within a maximum of 3 business days before the visa expires. If you attempt to go to immigration more than 3 days in advance, you may be turned away and instructed to return closer to the expiration date. This rule has been confirmed by users who have shared their personal experiences regarding visa renewals.