Upstream routing issue to IP 50.201.122.211 (shop.dvflora.com)

I have a confirmed upstream routing issue to IP 50.201.122.211 (shop.dvflora.com). Traceroute times out after hop 12 in your backbone (be-1-1-ssag02.woodbury.nj.panjde.comcast.net). It works over VPN and cellular, so it's not my equipment—I've already bypassed the router and flushed DNS. I need this escalated to Tier 2/3 or a network engineer for a routing table check, not basic troubleshooting."  I've spent 4 weeks trying to get a hold of the right person with no success.  I've had my router reset a dozen times, even had one agent try to sell me a phone.