Interesting technological discovery I made today: your British Film Institute membership card has the power to block Oyster cards. Yes, when you’re at the head of the queue to get on the tube or off a train, find out your love of film beats the mighty Oyster’s radio powers in the most embarrassing way possible.
Honestly, it’s true. I took the BFI card out and instantly my Oyster card worked again. I’m suspecting some kind of metallic ink is behaving badly.