You must make the reservation and payment (Visa/Master/American Express) on fly.prenetics.com/, walk-ins are not accepted at the moment.
Please book a timeslot at least 4 hours prior to your flight. You will be able to find a QR code in your profile after making the reservation. You will have to show us the QR code on the test day. Please do not eat, drink, chew gum or smoke at least 30 minutes before the test.