Maybe I'm reading into this, but I'm kind of feeling that they're not coming back. They didn't show up on a scheduled day, no phone call, hanging up on you when you call.....I might be way off, but I think they've checked out. And if they haven't checked out, I'd seriously contemplate getting rid of them. No way would I even entertain the idea of signing them on for another year.

Maybe others in here will have better insight than I, but that's my take on the situation.