It depends. Test going to the same laboratory (or collection center) can be sent using combined shipping. If you have selected combined shipping, then you have to pack them in the same bag (optionally you can tape the boxes together into one package).
If you need to use separate shipping (for instance you decided to do tests on different days) then you can order it through our web shop (search for return shipping).
Else we have made sure you won’t get combined shipping for test that can’t be combined. All information on combined shipping is in the instructions file you get when you order the test.