Can someone help me please? I think I know the answer but want to double check.

My employer has offered to pay for me to do uni. They have told me to have the bill sent to them directly. Great Fantastic!
Then they went on to say that this cost becomes part of my taxable income, and I would therefore be paying the tax on this cost (30c in the $ or something like that).

Does this mean it becomes part of a salary package and salary sacrifice? I am already using the full amount of SS i'm entitled to.

Does anyone know how this works??
The person I need to talk to at work about it isn't here today.. thought i'd try my luck here.