@Benjamin *****
I am quite confused. So, may I ask you? I have a Non Immigrant O Visa Retirement that i renew, or more exactly that I extend each year for one more year. My visa will expire on september 30. I mean september 30 is the end date of validity. In Bangkok, can I go to Immigration Chaeng Watthana to apply for the yearly extension ( a one year extension) tomorrow for example or do I have to go only 3 days before september 30?
Thank you very much