Verify the event details
Check the production title, venue, date and start time through the organiser's official channel. A shared poster may be old or refer to a different performance. Confirm whether the ticket is for assigned seating or general admission.
If friends buy separately, ask how seating together works.
Read the terms that affect arrival
Check entry requirements, late-arrival policy and whether the ticket must be printed or shown on a phone. Keep a usable copy available if mobile data is unreliable.
Ask about accessibility directly rather than assuming all seats have the same route from the entrance.
Build the evening backwards
Set an arrival target, then choose dinner and transport around it. Allow time to locate the correct entrance and resolve ticket questions.
Save the National Theatre or your actual venue, then add the confirmed event details. Keep a saved venue separate from a paid ticket in your notes. Decide where the group meets after the show before everyone enters the auditorium.
Rules, fees and opening hours change. Confirm anything that matters before you rely on it.