OP here again. Today, tickets for Westminster Abbey went on sale for my dates in April. So I again decided to attempt to buy them with my Fidelity Visa. And as it has with my 2 prior attempts at other sites in England, the transaction failed during the Visa validation attempt. This time, I received a more detailed error message -- the 3D Authentication attempt has failed. I'm familiar with 3D Authentication. It's a standard that has been widely adopted in Europe to authenticate transactions. According to my AI research, Elan supposedly supports the 3D standard.
So I called Elan customer service right after the failed attempt. The Elan agent heard my complaint and then said she would have to transfer me to another agent to fix this. That agent said she didn't know why it was failing at the Visa validation, but she did something and said try it again. When I resubmitted the transaction, it worked. Sort of. My card was charged. I got 3 text notifications that the transaction went thru - "card not present", "international transaction", and "transaction". All the alerts I would expect. Except the Abbey website said the transaction did not work and didn't offer any tickets or anything else. However, shortly after, I got an email from the Abbey confirming the transaction, but still with no tickets. So I will have to track that down with the Abbey, but at least I think it worked.
While this was happening, I got a little agitated with the second agent asking why this couldn't work like it does with other cards I've used with the Visa verification. I told her how my 2 other recent purchases using my Wells Fargo card proved my authentication during the transaction. She replied, we can't do that because you haven't provided us your cell phone number. I told her I most certainly have. I only have one phone number. It's in my Fidelity profile. And I'm quite positive that Elan would have it too.
She then said, that she did not have the phone number on the customer records she was looking at. Then she saw my phone number on her caller ID and said, "I do see your number listed as a 'previous' number in my records, but it's not your current number -- which is empty". Again, I got a little agitated with this, but calmed down and we got the number added in her records.
According to her, in the future, I should get a text message asking me to verify the transaction. I will see what happens. Unfortunately, I don't think I have any more transactions I need to do until I get to the UK in April.
By the way, the second agent did not tell me she was with Visa. Instead she said she was a "specialist with cardmember services".