Well if calling more than once a day is what you NORMALLY do, don't do it anymore. You need to change up things. Add a little mystery...make him wonder what is going on with you and the kids. I think you should let him know about $ for your one kid and expect some response.
But you really need to give him time to think about your question. I'd say wait a day before expecting any answer. After your first call, there should be no more calls regarding this subject. Remember you don't want to appear naggy or anxious...those 2 traits are not attractive, they just appear to make you seem desparate. I've been there and they will walk away from you. It's when you don't appear to need them, or call them, or email them, that they turn around.
Look for the things you are doing that are the things you've always done...change those!
