BA determinedly unable to sell airline tickets
I created a new BA account. This was because the old BA account required either an authenticator code, which I never set up, or a rescue code, which I never set up, to log in. The account would still sometimes work, but only when they didn't want extra authentication. I made a new American Express card with the new BA account. I went to log in to the new BA account for the first time. I got challenged with a captcha. I had to say what items performed the same function as a chair: sofas, vs other things. I had to do at least two of these. Then, I got the fruit of my labours: An error page from under accounts.britishairways.com saying "Bad Request". This is what we have. This is the pinnacle of human achievement.