First of all, I just wondered, What give you the impression that
a personal offer has been made to him? Hmmm... Crystal Ball?

Is it from the statement "The offer from United is
fantastic." ? This is just a very General Statement.
If you came to that conclusion just base on that statement then i
am afraid you may be reading too much into it... And your idea of
"actuali they dun hv to tell him if they are gonna reject
it" is wrong. A club have an obligation to inform the
player concern if an offer has been made for him, tho they don't
need to sell him.
Anyway, they don't need to inform him if they wish to sell him but
the player can reject and choose to stay till his contract expire
if he wishes to.
This is Professional football, if Man u had tapped-up Hargreaves,
Do you still think Bayern Munich will be keeping quiet and not
report to Uefa?
I don't think everything that is put up by the press to be true.
Even in this case, Man u have not even come out to say if they are
really interested in Hargreaves yet.
Anyway, i don't need a crystal ball to tell me all this... just
common sense. 