I recently bought a Traktor Kontrol Z2 from Musicorp, which rent hardware which you can buy as ex rental (normally only 6 months old). The product was near new and came with all parts, vinyl control and cd's etc… and is in perfect condition no scratches or sign of use. When I try and register the serial it notes it is registered to another account. I raised a ticket through support but have had zero feedback. Can anyone assist so I can register the product in my account.