The travel agent/QR ticketing staff should add your Qbiz track code in the OSI(Other Service Information) field of the booking.
Following are sample entries used in Computerized Reservations:
Amadeus - OS QR DC/XXQ000
Galileo - SI.QR*DC/XXQ000
Sabre/Abacus - 3OSI QR DC/XXQ000
Worldspan - 3OSI QR DC/XXQ000
Travelsky - OSI QR DC/XXQ000
Note: XXQ000 is just a sample Qbiz track code. Your own Qbiz track code is provided in your welcome email.