If you have 300 Attendee Credits and use 100 at your first event, you will then have 200 remaining Credits to use over the balance of the 12 months.
Yes, just calculate the expected nr of attendees. The minimum to buy is 150 credits. However if your events have 50 attendees, this means you can organize 3 events with that.
Yes, the more events you do, the bigger the attendee package you need, the lower the price per attendee becomes. This can save you up to 50% per event.
Yes, you pay for attendees that are imported into the system. You can always