I've written an event booking part of my new system. In this they book in and pay for the competition. I just had a guy press book now, but then close the payment window as he didn't realise he didn't have his card on him.

This has still created a Competition Registration record, it's just not marked as paid. This isn't the expected behaviour though. The average user would assume that this cancelled the registration process.

Wondering what the best way to handle this is?