Same appointee

UC have phoned my daughter 3 times regarding a “review”.
The first 2 phone calls they couldn’t get a good phone line, so they said they would mark her down as failing to attend! I’m not happy about that. We barely managed to hear the agent today, mostly because I had to press my head against my daughters to try to listen to what they were saying.
The agent had a very thick African accent and it was very difficult to understand her, and I’m not being rascist saying that.

She is so ill that she doesn’t know what she is saying , and they refused to speak to me, even though she gave verbal permission .
She has given me authorisation to speak on her behalf at her drs, and the hospital, also with PIP. Surely , as UC are part of the DWP, as are PIP, that authorisation should be enough?