Lost Produce Key for DDJ 1000 - HELP!!!!!!

I lost the Key for my DDJ 1000. Somehow the rekordbox software did not retain it when I first put it in after I purchased the unit and used it for the first time. Please help. I have been paying for a key from rekordbox.com but I have already purchased a pro unit to avoid incurring such costs. Any help would be much appreciated. I can provide a serial number if needed. Can't afford to keep paying like this. Thanks.