You will need to arrange with your current registrar to update the name servers of your domain name to:-
ns1.qbicinternet.com
ns2.qbicinternet.com
For Reseller accounts please use:-
ns1.controldns.co.uk
ns2.controldns.co.uk
If you wish us to take over administrative control of the domain name so all future renewals are handled by us please visit our website.