I was the IT support tech who would input tickets for people instead of insisting they call/walk-in with a ticket. The result was management gaslighting my ticket numbers as artificially inflated and being highly critical of my work. Wound up on a PIP.

(Realistically, everyone outside the department knew me by name. They would call and ask for me any number of ways including outright lying. They'd tell me I was the sole source of any problems getting solved! "Everyone else in that department can't do a thing.")

Please just put tickets in before you reach out to IT and have the number ready. Print it off, even.