ER24 Disgraceful

My 84-year-old mother was recently transferred between two hospitals for an elective procedure. The sending hospital has a payment agreement with ER24 but unfortunately, there has been an issue with payment. ER 24 has taken it upon themselves to send my mom distressing letters of final warning, etc even after we as a family have asked them to address the non-payment with the sending hospital as we as a family were never included in financial commitments around her transfer. There behavour has been similar to that of tow-truck drivers at the scene of an accident. Disgraceful!