I have two questions related to domains.

1.) I signed up for a plan and paid annually. I don't recall seeing anything about the 'free' domain when signing up but now it's on the frontpage: I was wondering if it's still possible to collect on it?

2.) Is it possible to change the domain you signed up with? i.e, I signed up with xxxxx.com but later got another domain, xxxxx.com. Is it possible to switch the old domain out for the new one? I don't want to 'park' it or 'multi-host' it. I want to use it as if I had signed up with it in the first place. If I need to clarify myself further, I'll be more than happy to (try.)