-Make sure you are registered with a GP with your current address/phone so THEY can contact YOU; most GPs let you register with them on their website
If not then
-Have a note of your NHS number from any correspondence with the NHS or download the NHS app and get it from there if you register fully and ID verify.
My GP practice's web-site also says this, which is probably worth adding:
Please do not contact your GP for a COVID-19 vaccine. The NHS is prioritising vaccinating people who experts have agreed will benefit the most. We will let you know when it is your turn.
I’d just say to everybody
-Make sure you are registered with a GP with your current address/phone so THEY can contact YOU; most GPs let you register with them on their website
If not then
-Have a note of your NHS number from any correspondence with the NHS or download the NHS app and get it from there if you register fully and ID verify.