How do I restore deleted netlify records?

would like to re-add records that were deleted in error. They are for
www.bastion.co.uk and bastion.co.uk
and were pointed at
bastion-production.netlify.app
I checked the AI support bot which suggested re-adding my domain but I don’t know how to do that.

By going to site settings → Remove domain → The add it back

Where is “Site settings”?

When I log on I see “Sites” “Builds” “Integrations” “Domains” … is it one of these options?