Went to Chaengwatana and got my extension to stay based on marriage 16th Jan until 15th April. My question - they told me to come back in a couple of months - what date can/should I go back to Chaengwatana for my 12 month extension application and what's the latest date I can go before I've missed the window?
TLDR : Answer Summary
The individual received a stay extension based on marriage valid from January 16 to April 15. It was advised that the application window for a 12-month extension at Chaengwatana is open from 45 days prior to the due date, meaning they can apply anytime now until the last date, which is April 15.