What do I do if I have a problem with my order? Rebecca You December 03, 2018 14:59 Updated Follow Please submit a request form and a member of our team will get back to you within 1 business day. Related articles Humon international distributors and resellers I am purchasing for an academic institution and require an invoice before purchasing. How do I obtain one? How do I connect a heart rate monitor to the Humon mobile app? I don't live in the US, can I still order the Hex? What does decreasing Sm02 signify? Comments 0 comments Article is closed for comments.