Domain locking only applies to US domain names. It is s security feature that enables you to prevent changes being made to your domain name. When the domain is locked you will not be able to submit Nameserver changes or transfer your domain name to another company.

With Pickaweb it is very easy to enable or disable the domain locking feature. This is performed via the Pickaweb Domain Name Management Area at https://www.pickaweb.co.uk/cgi-bin/manage.cgi