OS10 - Purchase perpetual - help my sales rep

The title says it all. I am trying to get a perpetual for a pair of z9100-on.

Our sales rep (and their team!) have a bad/old part number for the perpetual license and haven't been able to help me purchase since they can't find the right SKU.

Does anyone have an up-to-date link (none of the dell.to links seem to work anymore), and/or SKU to give to my Dell Sales Rep?