Show up at your appointed assessment day where the Deliveroo rep will go through the registration process with you, takes around 30 to 50 minutes to complete.
You are good to go with your first deliveries within 24 hrs of the interview, that's when you receive the app from the company :)
You have a trial instead of an interview.
Not really an interview simply bring documents along and go through paperwork etc.
Not really an interview. Just gets you set up, ordering kit etc.