There is no government-issued medical cannabis card in the UK. You must first...

https://www.bookmarkidea.win/there-is-no-official-uk-government-cannabis-card-access-is-prescription-first

There is no government-issued medical cannabis card in the UK. You must first secure a specialist prescription by sharing your medical records. While private clinics offer patient cards as optional proof of legal use, they aren’t a formal requirement.