If you need to make changes to your domains DNS entries like A, MX or TXT records - you can do this via your hosting control panel with us.
1. Login to the portal and click on your hosting plan to access the hosting control panel - https://www.nuttyabouthosting.co.uk/portal. In the example image below you would click the button "DNS (inc yourdomain.uk)"
Now you can click the "Add Record" button to create new entries, or you can click the icon to edit them.