You need to book your collection at least 1 working day in advance, ensure all paperwork and specimen tubes are clearly labeled with the patient's name, date of birth, and collection date, place your sample container in the provided biohazard or plastic ziplock bag with absorbent material, pack your sample securely into the original box (or another cardboard box if unavailable), attach the DHL return label flat to the back of the DHL shipping bag, and place your boxed sample into the DHL bag and seal it.