Both the venue and the brand can flag an issue with delivery, setup or collection through their account.
If you receive an email alerting you that an issue has been flagged, you will need to contact the stakeholder who has flagged the issue. Their details can be found on the Booking Details for the booking, under Manage, Booking Requests.
You can see further information as to what the issue was my going to Manage, Calendar, and then clicking through to the Status & Timings page.
(Bookings with a flagged issue will show in pink)
Here, you’ll be able to see exactly which part of the process the issue was flagged in. However you will need to contact them to find out more context.