RazerCare - Can Not Add to Qualifying Headset

I am a US customer and purchased a Razer Nari Ultimate headset directly from Razer.com on 2/22/2021. It arrived on 2/26/2021. Once it arrived, I registered the product on the Razer website and attempted to add RazerCare to my new headset. However, when I put in the Serial Number of the product at https://www.razer.com/razercare/warranty, I get an error that says:

Razer Care Protection Plan: Not available
Your product no longer falls within the period where we may provide RazerCare extended warranty.

The information on https://mysupport.razer.com/app/answers/detail/a_id/975/ states that headsets are eligible for a three year RazerCare warranty. I am within both the 11 month window for basic RazerCare and the 15 day window of my purchase to add RazerCare Elite.

I have opened up a support ticket over the weekend and was told it was being raised to the "relevant team" and that someone would reach out to be within 2-3 days. It has now been 4 days and no one has contacted me to resolve this. I am nearing the latter half of the return window on this headset and would like to get this resolved.

The incident number I was given when I opened my ticket is: 210228-000239