Although I also think you were still faster, I do understand that this is really inconvenient. We're sorry!
Of course, we will do our best to solve this issue. Do you remember when you tried to pay and the Tap & Pay screen was hanging? We would like to know the date and the estimated time. You can also send us your phone number (firstname.lastname@example.org): this way our technical team can search the logs for you.
The feedback about the Pin will be passed on to our developers! :)