TDCJ preventing receipt of money for no reason

I been in 12 years and never really had an issue with my account, well, TDCJ put a "place hold" on my account which means they stop money from going in or coming out of your account which means no store. It's almost a year like this and I talk to the wardens at my last 3 units, file a grievance. There is no help in this system (TDCJ) for grievances. It was sent back the same day stating its not grievable, smh, and was told to write to the "inmate trust fund." I did and never heard from them either. See people live off the support the people in the world give, family, friends, etc. but TDCJ mis-use the policy to use it only in they power. I don't know what else to do and try not to worry my family for things I feel can be handled by me, but I have come to a dead end and am now seeking advice from your movement.