You can register over 50 domain TLDs with us in real time -- in over 95% of cases without our assistance. This is a fully automated process. After registration you can also administer your domain name, e.g. appoint nameservers to it or change address details, all from within our billing/admin control panel at:
https://basicnetworks.net/accounts/clientarea.php
Just login, go to "My Domains," click onto the small arrow icon right of your domain name, and here you can change whatever details you need to change.