We've been trying to change our contact details on our .dk and .se domains but it won't let us to do so.
What do we need to do in order to make those changes?
Welcome to the Community!
Both domains need to be updated either through the Registry or with the escalation of our support team. Please see the requirements for each domain here.
.DK : https://www.godaddy.com/help/about-dk-domains-9188
.SE : https://www.godaddy.com/help/about-se-domains-6460