Anyone have experience entering the country with a recovery certificate and a positive pcr test and/or testing positive upon arrival? My friends, due to arrive on Monday 21/2 have the following situation:

3 Pfizer shots

Covid 2 weeks ago

Recovery certificate (all valid 14 days or more)

Chances are they will test positive on the pre-departure test but even if they don’t, they’ll probably test positive (or ‘detected’ here in TH as the tests are more sensitive)

Do they proactively show their recovery certificate at the pcr testing at Phuket airport? Or wait for the result? And then what, will they have to go to the nearby clinic to show then the certificate? What happens?

TIA for any advice