You didn't really have any leverage in this situation. If you did, you didn't express it in a meaningful way. It's business, not personal. They have so many

You didn't really have any leverage in this situation. If you did, you didn't express it in a meaningful way. It's business, not personal. They have so many things going on, it's a bit like trying to get your resume noticed. Do something crazy, or obnoxious, or out of the blue that will get you noticed NOW. Then show them how, if they don't pay attention to you, it will cost them money.