Final COE approved, now flight changed to 1 week later.
Do I reapply from scratch or can I somehow contact the Manila Embassy for them to change the existing COE?
TLDR : Answer Summary
If your flight has changed after your Certificate of Entry (COE) has been approved, it is advisable to contact the Thai embassy directly where you applied for your COE. You may need to request a new COE with the updated flight details. Some users suggest that it might be possible to amend your existing COE by emailing the embassy and providing them with the new flight information, while others indicate that starting from scratch could be necessary. It's essential to confirm the best course of action with the embassy.