The Azure region us south central us does not show up when creating a cosmosdb account

As you can see in the screenshots, the region I need does not show up in the dropdown and I cannot select the us south central region (in Texas). The resource group is in Texas tho, and I have some VMs running there.
According to Azure Products by Region | Microsoft Azure cosmos db IS available in south central us.
Mark Brown at serverfault told me this is because there is a capacity constraint and I needed to get my subscription whitelisted. He told me he could not do this so I need to open a ticket, but I do not have a suppor plan (I'm on the free one) so it would be better to ask for help here
:)