What should I do if the Thai embassy rejects my insurance coverage for the Phuket Sandbox program?

Did you get an insurance document from AIG that looks like this? (this was the policy format for last year/earlier this year so it may have changed but should be this type of similar policy doc.) If that is the case, many travellers had posted before that the consulates would miss the line that specifically mentions COVID coverage and would deny the COE until the same page was resubmitted with the COVID coverage line highlighted, and then it was always approved. In my example, it is the last line where I drew the red arrow. If this line is in your policy doc, then resubmit it with that line circled or highlighted. This is assuming your coverage term isn't the issue, as the AIG coverage is for the exact dates of your roundtrip Emirates ticket. If you do NOT have the policy doc, then you need to email with a copy of your Emirates roundtrip e-ticket and ask them to send it to you.