on behalf of

US /ɑːn bɪˈhæf ɑːv/
UK /ɑːn bɪˈhæf ɑːv/
"on behalf of" picture
1.

as a representative of someone or something

:
She accepted the award on behalf of her team.
I'm calling on behalf of Mr. Smith.
2.

for the benefit or advantage of

:
We are raising funds on behalf of the local charity.
He made a sacrifice on behalf of his family.