Vref IS Vls(full). And exactly as the tables say, the additive is to Vref, i.e. to Vls (full).
Your company is correct in A) exactly as per Airbus procedure.
Your company is technically correct in B) as well (it does not change a thing) however, the Airbus procedure is to select F3 afterwards in the MCDU. I believe that is for consistency.
As a general rule, you do not want to have incorrect information displayed willingly anywhere on the flightdeck.
Regards, references to follow later.