For the purposes of our policies, a UK resident is defined as a person who has their main home in the United Kingdom, who is registered with a medical practitioner in the UK, and who has been resident in the UK for 6 months out of the last 12.
Having a visa to live in the UK is not the same as UK residency. To see more about how to become a UK resident, see: https://www.gov.uk/british-citizenship