Did eventually find some test dates, option to auto-book so I don't miss reservations, decent deals (50% off etc.) However, I found more convenient test dates just by doing manual checks alongside the app, and found dates that the app didn't alert me of. Also, makes me wonder how I am prioritised against other people using the app - I think the way the app works should be more transparent. Paying more for an upgrade did nothing to improve the waiting time for a new date. Also, really awful interface for both the app (which kept logging me out) and the site.