You could rightfully request your commission from the org.
He didn't agree to share with me the amount he was giving, but my problem wasn't the commission, it was more the way
@aygart put it, most organization's would have no income if not for fundraiser's, and it's not an extra expense that they can avoid, as they can't avoid the ads etc.
And your doing them a big favor making calls, and BH most people I called then, realized the chessed I was doing, and no one is really doing it for the money, at least in the regular phone donations...