Bought a used ORBI RB50 and Netgear wont answer my request to have it registered

Hi everyone,

I need your help with what to do since Netgear wont answer my emails about registering a product. I bought a RB50-set via marketplace and was able to register the satellite but not the router. I wont use the router without actually having total control of it. Emailed Netgear support without getting an answer. Is this really how its supposed to be, that you can't buy used stuff anymore?

I'll paste the email I sent them as well:

"I need help with registering a ORBI router RB50 which I bought used. I bought one router and one satellite and when I connected them I realized that the previous owner had registered the router but not the satellite. I managed to register the satellite but I need your help to register the router since I want to be able to connect to the router remotely,

I'll attach photos of the two devices. If you check my devices you'll see that I managed to register the satellite a few minutes ago. But not the router.

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