Thanks Thorntrees.
After ages spent trying to get my third primary, as advised, I eventually marched into the vaccination centre, where my husband had an appointment.
On checking my record, they gave it to me there and then.
I did have to explain that AZ was not suitable for immunocompromised patients and why. I was given the Pfizer, which wasn't as problematic as the AZ ones, which put me in bed for three weeks each time.
Staff seemed very ill informed, but willing to listen to me.
When I couldn't access the vaccination, (the helpline were useless, hadn't a clue about a third primary), I wrote to the Chief Medical Officer in November.
I received a reply this morning to await a letter for the third one. A bit late, to say the least. I was vaccinated on the 6th of November!
In all fairness the system has been updated and I have been told I am eligible for a fourth and access to antivirals, which is reassuring.