"Cannot register my father as housebound"

A month ago I had to cancel my father's Covid-19 Booster Jab as he is now housebound, and asked them to arrange for the District Nurses (who visit him weekly anyway) to do it. I also asked for his 6 monthly cancer injection to be referred to the District Nurses to do on 3 May 2022. Just had a call from the surgery saying he needs an appointment to come in and have his cancer injection. Told them I'd already reported him as housebound a month ago. Apparently no-one bothered to action it. We'll see if anyone actions it this time. How do I get his Covid-19 Booster and his cancer jab unless this practice takes some action to register him as housebound??