I just arrived in BKK on KLM. A bit of confusion in Schiphol getting all the Covid related paperwork checked but apart from that the flight was fine. Staff very friendly, good service, food OK (certainly had better) and hardly any passengers so plenty of room to relax.
I completed my COE yesterday and had no problems. As others have said, try a different browser. It might also be that your file is too large. I’ve had problems in the past where the site has timed out in which case just logging in again and repeating the upload worked for me.
Simon, I’d go to Bangkok Hospital. Might cost more than the Government Hospital but service is much better. Just go to reception and ask to book an appt for a Covid PCR-Test a few days before you fly. Ask what the turnaround is for the results and book your appt so that you get your results back < 72hrs before you fly.
As others have already said, it varies from one Immigration Office to the next. I’d go and ask at your local office now. My 1st 60d extension to SETV was due to expire on 12th Apr. I went and asked today and they told me I could do it now. So I did and I’ve now been extended to 12th Jun and it’s only 9th Mar.