Same, I gave up. Imagine the UI at Z.com after registering a name if they make it this hard to become a customer. It's absurd. They must've hired all the guys Gname fired.
Yeah, that's totally understandable. Faced similar experience too.
If you really want an account , Go to the following link, search a domain, add to cart, continue to check out. You will get the option for Sign up/Sign in.