So here's a story about how bad user interface, legacy Google results — and a degree of stupidity on my part — result in embarassment, confusion and more work than should be necessary with just a little more consideration.
We want to transfer a domain name for a live website from its existing registrar at a public sector body to a registrar for the organisation to own and have easier editing access to for DNS changes, etc.
It's a .org.uk domain, which means the transfer involves having a 'Registrar tag' (formerly known as IPS tag) amended to point to the gaining registrar, and then commencing transfer (verifying ownership along the way).