You can update your home address in your Member Zone.

You can also update your home address on the Vitality UK app. To do this:

Tap the Profile icon in the top right corner of the homescreen
Tap Update personal details
Scroll down to Address
Tap on the Arrow in the address box and click on the address you want to change
Tap Update address
Type in your postcode and click Find your address
Select your address from the drop-down and click Save

Life plan personal details