In many cases, the initial calls were made on their behalf.
She's made quite a number of phone calls on your niece's behalf.
Make a few phone calls on their behalf, talk to the lawyer.
We're just going to make this decision on their behalf.
"You have no right to make decisions on her behalf."
Any effort she had made on their behalf would have failed.
He had to make a decision on his daughter's behalf.
He knew this, too, was a commitment she had made on his behalf.
There's nothing to prevent me from making a call on your behalf.
The claim of being "the first university" has been made on its behalf by others.