The business case
Subject: Sponsoring me for [target role]: what it involves
Hi [contact name],
Before you decide on sponsorship for the [target role] role, here is what it involves. [employer] would assign me a Certificate of Sponsorship from its licence. The Immigration Skills Charge is paid by the employer; it is not payable when someone switches to Skilled Worker from a Student visa. I'm finishing [your course] and can start on the timetable you need.
Could we talk it through?
[your name]