If you've purchased your domain name from another company then you will need to manually update your nameservers.
Please point your nameservers to the following:
ns1.wildkat.co.uk (109.70.148.2)
ns2.wildkat.co.uk (109.70.148.3)
If you need any help setting your DNS then please just contact our support team and we'll try help the best we can. If you've purchased your domain from Wildkat then you won't need to make any manual changes.