You got one step ahead of me, I had an email saying "we will call in the next 2 weeks" then another asking if I want to start in July.
Didn't get a call, just the same rejection email this morning "your application is unable to proceed".
I suspect they have had a huge influx of applications and they have filled all the assessment slots already, shame they don't offer any actual information but then that seems to be a theme with all flying job applications.