Service Request

How do you do one? What's the link? And after how long should you do one?

https://egov.uscis.gov/e-Request/Intro.do

Yeah but what do I put for the reason, it says if I didn't get a receipt or if there was an error, I have none of those problems. The only problem I have is the wait and it doesn't have an option for that. And if I choose non delivery of appointment notice, it asks for which one, I already got a bio one, and I didnt get an RFE. And besides this part makes no sense, it asks "Select the type of notice you did not receive" and then asks "Request for Evidence
Date Request for evidence was mailed to you (MM/DD/YYYY)"

that makes no sense. I'm so confused. stupid website.

Just wait. None of that stuff really works for people.