We have a VW billboard in here Melbourne advertising
It's a fairly big-budget campaign so I assume the grammar has been thought out, but it just sounds off to me - can you 'tell everyone deals' or do you 'tell everyone about deals' or 'tell everyone of deals'? Can I tell someone deals the same way I could, say, tell someone facts?
The page I linked to above actually has the about in the title, but for the most part the campaign doesn't use prepositions in that location.