You can perhaps check is this weblink:
https://classic.checkmytrip.com/plne...&SITE=XCMTXXNS
The two things to check is whether the passport details are held, and whether the ticket is ticketed (e-ticket tab, you're looking for a 125 number).
It takes just a few seconds and if everything looks in order there I would leave it to the airport, perhaps arriving 15 minutes earlier than you normally would, just in case.