Stopping paying was probably the dumbest thing you could have done (no offense meant). If that agent at DCS refused to send you documents, all you had to go was call and talk to somone else, or move up the ladder. If that didn't work, you should have called the Ombudsman.
Now you're stuck, you can't rehab again, and as soaplady said, if you're being garnished, you can't consolidate.