If your friend really didn't behave well,
It is likely to be shelved or ignored by HR.
The so-called notice of another interview or confirmation of the boss's meeting are just excuses.
Suggested confirmation time. If it really takes a few days or even a week.
That's basically hopeless
If you really want to enter Ogilvy,
You can take the initiative to contact the other party for it (maybe the other party wants you to take the initiative)
Good luck.