It could be. As I said, the machine couldn't read it.
I lazily got my Forest train ticket on trainline yesterday, however, today I was due to go to London for a meeting, With 60 minute delays due to a signal failure I would never had made it. The ticket office were able to refund it immediately...
Not just the vulnerable. Had an issue collecting our rail tickets for Wolves away as the ticket machine wouldn't read the card I'd paid with. Lady at the ticket office sorted it out straight away. We talked about the closures and she did point out to me the irony that offices were being shut...