Unable to complete challenge

I did everything that was instructed, and failed the challenge and got the error message "Can't find a new Product Support case for Pyramid Construction." I went to the cases for Pyramid Construction and there is a case. I thought I must've done something wrong in the process so I went and followed every step from the provided video but still got the same error while a case does exist for Pyramid Construction.

Here is the URL: Create a Case Escalation Rule Unit | Salesforce Trailhead

Attached is a photo of the case existing for Pyramid Construction along with the failed error message