My relative is 75 and having chemotherapy for chronic leukaemia, so on the extremely vulnerable list and high priority for the vaccine. She attends hospital daily during her chemo cycles so is very exposed to the virus, but she hasn't had a vaccine invitation yet. She's asked the chemotherapy staff about it but they have no information. Does the invitation come from the GP or from the vaccination centre? How can we find out where she is in the list? She has healthy friends the same age who are already getting appointments.