Hello,
I'm going to to do a Saliva Cortisol test tomorrow and am confused about how to return it.
In the accompanying leaflet it says to call UPS to arrange a collection, but there is a pre-paid 24 hour tracked label in the box - do I just post this into a normal post box, a priority box, the Post Office - or none of these as it has to be UPS courier?
Don''t know why I can't understand it, must be having a Moment.
Thank you!