BA.com is asking for my Covid vaccination certificate before it will let me check in for a USA flight. I am fully vaccinated. I have a photo of the original partially hand written certificate of Pfizer from a small Caribbean island, or a converted EU QR code/ certificate on an app on my phone.
Whoever is doing the checking on BA says that neither is acceptable. It seems like we've reached an impasse. This doesn't seem to be an ideal week to have to persuade Warsaw BA check-in agents in person to let me check in.
Any ideas? I've previously used Verifly without issues - can that still be connected to BA?