"failed duty of care"

My daughter early 20ies and autistic was being seen weekly by the psychology team at Dumfries helping her with severe PTSD. Last Feb her therapist went off sick and nothing has been done to help my daughter who is struggling massively. No one (apart from the off sick therapist) has contacted her to see if she's ok (she's not) nor done anything to arrange continuing therapy. It's now got so bad that she's had to call the crisis team who passed her onto the Distress brief intervention team.

However, they only do two week's help for the immediate distress, no help is offered at all for dealing with the underlying issues. My daughter is too scared to sleep. I have to go over to her (40 miles away) and sleep on her floor so that she feels safe enough to sleep for a few hours. Calls to the psychology team have been useless with nothing done to get help for my daughter. She was never discharged from the service, her therapist went off sick. They should have a duty of care towards her but have failed her massively. They have done nothing to find a new therapist or ensure her safety. Her safe keeping seems to fall upon me alone. I know she will return to self harming or worse, but no one seems to care.