Product key recovery

I need help recovering my product key for my controller. Who can I email at cubepilot to get the key? I bought this from a friend and when I upgraded it to the new software we didn’t realize we would need the key. Now I can’t use it. We don’t know who the reseller was.

Please provide the android serial number
Settings > About Phone > Status > Serial Number

Thank you for getting back to me!

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