Originally, my hubby was turned down for WTU after five weeks in the hospital. Command was on my side of the situation (Hubby was in for severe chronic PTSD). Command went with me to meet with the head of our MTF to ask that it be explained why he was not let in to WTU even though his treating physician said he did not need to go back to his unit and would never be able to perform his job again. I had a letter with eight pages of documentation of specific instances where my husband had not been able to get treatment for one reason or another because he could not get to appointments. It was also going to take him more than six months to become stable (we never going to get rid of it, but we could at least get to a point where he wasn't about to commit suicide or putting holes in the wall because he was so angry.) Since our command was on board, I had documentation, and his doctors all wanted him in, our MTF WTU board reconsidered and he was accepted.
My review on WTU at our base is mixed. Command had given him a shortened day, and permission to leave whenever necessary. They were aware of all his problems and really worked with us for the short time between the hospitalization and entering WTU. They had told us they would work with us as long as necessary. I know that WTU is supposed to coordinate appointments, case manage "total" healthcare, and be able to support the whole family. At some bases, they do a great job. Ours is not in that category.
First, I would ask if he was not signed off at brigade level or if it was the WTU board. Then, I would ask for a meeting with whomever stopped his WTU paperwork, brigade or MTF WTU board. I would bring documentation that neither of these conditions was going away and the amount of his treatment, number of appointments he has weekly, limited duties he can do, length of recovery time for surgery, etc. I would ask for something signed at the command level that says they are aware of his conditions and what they are doing to accomodate him. If they are not willing to accomodate him at command then they need to push for his acceptance in WTU. Good luck!