Couldn’t Spell It Any Clearer

(I work IT in a health care clinic. We have multiple sites. I get a call from a user. During the call, this happens:)

Me: *I say exactly this wanting the user to type ‘I:’* “Type I, colon, the slash that goes from the upper left, to the lower right, next to the enter key.”

User: “I, colon, s,l,a…”