Thanks for searching for the answer you need here and welcome to the Community!
Before we can assist you on this we'd like to know some more about the issue you're experiencing. Is it only your university that is missing from the drop-down menu or you can't see a drop-down menu at all?
Also, when did you request your university to be added to the list? Keep in mind that once you've requested a school to be added it might take some time before the entry reflects in the drop-down list. We suggest getting in touch directly with SheerID for more info on this process. You can reach out to them here.
Hope you find this useful. Keep us posted if you have any questions.