I might receive the offer letter from Deloitte for Senior consultant role, in my conversation with the HR I had informed I'd want a higher level in that. As

I might receive the offer letter from Deloitte for Senior consultant role, in my conversation with the HR I had informed I'd want a higher level in that. As in L2, L3 (or SC2/SC3).
What I want to know will I get that mentioned in the offer letter, how do I ensure this?
Please suggest.

Does Deloitte specify at what level you are join for Senior consultant?