Well, I wish I had some fantastic secret to share, but, I don't. It's just that over the years I've learned that it's worth continuing to try. I've found that it can be very CM dependent -- the luck of who you get on the phone. I also try to keep it light, respectful and thankful for anything they may be able to do (never pushy, lol, as that will guarantee you get nowhere). But really I think it comes down to timing and the CM. So if you keep trying, you increase your odds of success. It doesn't always work, but quite often it does.