Nominet doesn't seem to want to do it, and the company that registered the name for me says it can't do it.
If they say they can't do it - mention the data protection law! Nominet could do it for you, but it's really the responsibility of your registrar.
If I have to do it through Nominet I simply don't see how I'm supposed to do it. I thought Registrants Online might be the solution, but that requires a security code from my Confirmation of Registration Letter. I don't have one. I'm completely confused about what to do now.
And all the while, my name and address are visible in whois, which is scaring me.
Can't offer much advice for the time between now and when your letter arrives unfortunately.