can't open my purchase of djay pro

I was askd for license key after purchasing. can’t find key. djay says go to delete all demo’s of djay pro and followed instructions to go to mac store and find it. can’t find. Please help.

Hi there,

we are sorry to hear that, please contact the support via for informations about your account.
They will help you out as fast as they can!

Keep it up,
Lukas E.