Has anybody flown recently with Thai Air from Heathrow and used a Certificate of Recovery in respect of covid. I have everything booked and paid for, fly on 27 December and now testing positive with covid. Understand I can get a Certificate of Recovery in 14 days time, but want to ensure it will be accepted by Thai Air and once I've landed in Phuket as PCRs can show a positive reading for up to 90 days.

Any help or knowledge about this will be greatly received

Arriving first week of October - landing in Bangkok and then taking a connecting flight to Chiang Mai - with a narrow window of just 2 hours.

Should I get my visa stamped at Suvarnabhumi Airport or at Chiang Mai Airport?

Thank you for your help :)