Mike,
There are a couple of avenues to go. First, talk to the supervisor of the PEBLO and find out why your were disenrolled. Disenrollments start at the PEBLO level. Second, talk to the Ombudsman they can usually get things done. Last, go to JAG and see what they can do or find out for you. Do you know if your unit is trying to do a chapter or any kind of legal actions on you?