Our nameservers are:
ns1.ahcloud.co.uk - 198.244.233.67 & 2001:41d0:801:2000::fef
ns2.ahcloud.co.uk - 77.75.121.141
You must have a domain configured on our hosting platform in order to use our nameservers.
If you do not wish to point your domain to our nameservers then please create the relevant A records (and update your SPF / DKIM records too!) to contain the IP address shown in your cPanel control panel.
If you are a reseller then you may use either the nameservers above or create your own nameservers in your WHM control panel.