If an issue arises during your scheduled pick-up time, you can reach out directly to FedEx to reschedule a pick-up time leveraging your unique tracking link shared in an email from eMed. You can also reach out to eMed customer support at 1-866-955-1173 or support@emed.com for assistance in rescheduling. You can always drop off the kit at a local FedEx location too. The blood sample needs to be returned within four days.