What's the payment procedure?

The booker pays us and we pay you. 
When the booking is confirmed, we ask the booker to pay for the event in advance. You create your invoice after the event and upload it on the booking page (please only after the event is completed so that no unnecessary changes are needed afterwards). 
OR 
You have allowed auto invoices (automatic invoicing = credit note creation by Spacebase) in your master data in the portal; Then you will receive a credit note via the system and your money will be transferred to your account.