Navigate to https://software.cisco.com/software/csws/ws/platform/home#
Once the page loads, scroll down towards the bottom
There is an option called "Submit request"
Click on it, and you will be prompted to login (if you are not already logged in)
Once you log in, you will land on the access request page
All you have to do is enter the domain name of the company that you are submitting the request to
Click submit. That's it.
The request will go to the Smart Account admin of the company in question and you will be notified via email once the it is approved.
Below is what you expect to see.

