We have an R540 that was purchased reently with server 2016 std preinstalled. It just came to our attention that it needed to have 2012 R2 installed. I have 3 lines on the Dell quote about the license and media and one states Windows Server 2016 standard Edition, No Media,2012R2 Downgrade Media, Multi-Languard (634-BJQR). does this mean I have downgrade rights? If so what about the 2012 R2 product key?