Join Date: Nov 2018
Location: Istanbul, Turkey
Programs: TK Elite Plus,BAEC GGL,ITA Executive, AFKL Gold,QR Gold,HH Diamond,Bonvoy Gold,ALL Gold
Posts: 14,186
My suggestion would not be to use any online verification portal such as Verifly or the document verification service on BA.com
This issue should be solvable at the airport since BA doesn't scan or take photos of vaccination certificates but only glimpse at them.