You as the patient don't need to worry about shipping your saliva samples and the paperwork to the lab... That will be done by either the clinic or your Health Care Advocate.
I'm providing this information below to help your Advocate...
Shipment instructions (whether it be shipped by the provider's office or your Personal Healthcare Advocate) are in Pharmacogenomics Test Ordering Instructions. Item #4 "Shipment".
In addition to those instructions, be sure that the front and back of the insurance card(s) and list of current medications are included in the demographic sheet or that they are separately included in the packet.
Use the prepaid AirBill provided in the packet.
If it is missing, obtain a blank FedEx AirBill and duplicate the prepaid AirBill pictured below (and fill out the clinic's information in the "From" section).
Note in that in the "From" section that there is a section "Sender's FedEx Account Number"... leave that blank since the sender is not paying for the shipment.