Ny new Orbi RBR750 already registered, but not to me.

Hi,

I have replaced my Orbi RBK50 system with a Orbi RBK752 system (one satellite on both). When I was setting up the new system I was told that it was already registered. I bought it on Amazon as a Warehouse Deal, so it was an open box. The issue is that I have a Netgear Armor subscription i would like to move from the old system to the new one. I have followed the procedures to do that but when I am to select my new system it's not listed under my account. So I need to get the RBK752 system moved to my account and then I can move my Netgear Armor subsciption over. I know that there's problany no warranty on the RBK752 since it's an open box purchase, but I would like to be able to use my Netgear Armor subscrition which was recently renewed. I have seen others getting it done but it involves getting the attention from Netgear support after having posted here, so that is what I am doing. 

Please let me know what I need to do next to get this done. Thank you in advance.

P.S. The RBK752 system is great with WiFi6 that many of our devices now have!