Rules

Tickets are non-refundable, but you can transfer them to someone else. We expect all our attendees to be aware of our code of conduct.

You may not use performance.now() tickets as a prize in or a part of any promotion or sweepstakes without our permission. We'll void such tickets without reimbursement.

Teacher-student programme

If one or more teachers from a university buy tickets they can take a few of their students with them for free.

As a teacher, please buy your ticket, then let us know that you'd like to use the programme. We'll let you know how many students you can take — this depends on the number of universities and the total number of student free tickets.

This offer ends in late September.

VAT

Since the conference is taking place in The Netherlands, 21% Dutch VAT will be added to all ticket prices.

Article 53 of the European VAT directive requires us to charge VAT even to foreigners:

"B2B services in respect of admission to cultural, artistic, sporting, scientific, educational, entertainment and similar events will be taxed at the place where those events actually take place."

Visa

If you need a short-stay (up to 90 days) Schengen visa you need to apply for one. One thing you'll need is an invitation letter from us.

Order and pay your conference ticket. Then let us know that you need a Schengen visa. We will send you an invitation letter.

If your visa is rejected, send us a copy of the rejection. We'll reimburse your ticket.

Obtaining a Schengen visa may take up to a month, especially if you haven't applied for one previously. We advise you to start the visa application process no later than mid September.