I see an email that was sent to the user UCmaster1 which correlates to an email address at cognizant.com. Is that you? Is it possible it's going to your junk email?
If you still having problems, reach me at email@example.com and we can schedule a time to test together.
You can download the guide directly from the lab: https://devnetsandbox.cisco.com/RM/Diagram/Index/17b1ea84-2841-4c80-bc19-927395f903bd?diagramType=Topology See the instruction on the left side of the screen which includes a link to download the guide. Yes, you can use the Sandbox to test and for customer demos.