Coyle's an interesting beast. When they need you, they're attentive and very cordial. When I have to contact them, it's a long shot at ever getting a reply. I've risked being a pain in the backside and just calling direct numbers, otherwise my emails and voice mails never ever get returned.
Here's the thing about life in general; if you want something, ask for it. If you're in the hole with them, what's the loss? You've likely had a working relationship with one or two schedulers or editors there, so call up a direct line with one of them and ask. It helps if you have your eye on a job that's currently on the board. I believe I got an early assignment from Coyle when I couldn't tell if I'd applied correctly, contacted them to verify, and the response was "You did it correctly... and I just assigned you!"