Do not start my day by telling me you are going to commit suicide if you don't get to speak to a person in the department you need. It's not funny at all, it won't make me any more eager to help you, and it won't make the person you need magically appear at her desk when I call her.
I know for certain that this is a matter of money, not of life and death. Don't blame me if a person does not answer the phone, don't imagine that you're the most important person in the company, and don't. ever. say things like that.