Domains
To be able to setup your hosting account you will need a domain name, for example shopzen.co.uk is my domain name.

Your domain does not have to be registered with me.
If you already have a domain name you can point your domain's NS records to my name servers
ns1.shopzen.co.uk
ns2.shopzen.co.uk
This passes control of the domain over to my name servers and I can then setup your account. Hosting of the domain name remains with the company you bought it from for renewals. This is not transfering the domain to shopzen. It just passes control of it to your hosting account.

If you don't have a domain name I can recommend a few places. the cost is usually about £8 per year for a co.uk domain

Once you have a domain name I can add it to your account. Please keep in mind that domain changes can take up to 72 hours although in my experience its usually about four hours or so.