Registering beacons bought from 3rd party?

I recently ordered some Estimote beacons on Amazon from a 3rd party and was wondering what the correct procedure was if I wanted the beacons registered under my account? When I try claiming the beacons using the Estimote mobile app I get the following error message “Claim failed due to server error. Please try again in a few minutes” leading me to believe these beacons have never been activated. The 3rd party seller has also been unresponsive so I’m not sure where to go from here.

Email us to contact@estimote.com with a proof of purchase, and we’ll try to sort this out (: