Texas DFPS, Texas CPS Child Protective Services CPS Refuses even supervised visitation while ungoing "voluntary" family services Austin, Texas

Last year our family went through some really tough times.  Unfortunately during this time we behaved horribly towards each other and a report was made to CPS due to possible abuse and domestic violence.  The investigation was determined "unable to determine" but we VOLUNTEERED to undergo Family Based Services.  As part of the "safety plan", a no contact order was issued against my husband.  That was 6 months ago.  Any time one of us says anything about him having visitation, our case worker threatens court action.  In some ways I would welcome that so there is someone other than our caseworker involved and he is being held accountable for his decisions.  Next week is our daughters 5th grade graduation and they are saying he cannot attend!!  This is breaking my daughters heart!  The only "allegations" that were substantiated is they got spanked twice with a belt (in their lifetime), dad yells, and they are afraid of his "look".  The other comments in our report are "Mother says the children are exhausting", and "both parents are self centered and attempting to have their needs met through their children".  What does that even mean?  They are saying my husband has "anger issues".  He very well may and could benefit from the counseling services, but because of the above issues, our children are at risk and he cannot even have supervised visitation!  The fact that we are seperated and I am advocating for his right to his children should speak volumes.  Is our caseworkers no contact continuation absolute?  Who do we talk to "go up the chain of command"?  My husband will not attend the graduation without their approval because he will not jeopardize CPS taking the children from my custody.  I have to listen to my daughter cry herself to sleep because he cannot come and she doesn't understand why.  I do not know how to fight this "phantom demon".