Configuring Zoom Event ticket purchase for multiple guests from one company email domain

[GilesDP]

Setting up an event, we want to offer a paid ticket price so that a company can buy tickets for multiple people on one purchase.  The config enables fields that give name, email and role for the first person and then we created bespoke fields for second and third guest to capture name, email, role.  
This did not work because only the first person who made the purchase gets the email communication. We need all guests to receive comms with calendar invitation and updates about their ticket and reminders etc.  

How do you configure Event for multiple people on one purchase so everyone received comms?