I made a complaint to the manager of a charity that provides a service to a disabled family member because they are not providing the service they are supposed to. It's a paid for service. In response they have closed ranks and accused my family member of being abusive towards them on the phone. I was there and there was no abuse. No raised voice, no swearing, no aggression, but there was frustration at the ongoing issue of not providing the service. The manager is launching an investigation into my family member who is going to be distraught. They are elderly and well known as a lovely, polite, pleasant person.
Does anyone have any advice on how to handle this? They are part of a wider council group so perhaps the council might be able to help.