Your question: What does Self Billing mean?

Answer:
EyeLikeImages will be operating a self billing system. By self billing EyeLikeImages produces a digital pro forma invoice (credit note) for every payment.
You don’t need to send us a VAT invoice. The credit notes will be emailed to you and consist of all elements for you to comply with VAT legislation. This simplifies invoice administration for both you as a Contributor and us.