But when trying to change nameserver it returns
two different nameservers and we cannot control the site from the controlpanel.
I have located the issue to be because the site was previuesly added to antoher Cloudflare account. When i readded to that account, it worked on that account. But we cannot use that account in the future… Removing the site again doesnt do anything, it keeps returning the wrong nameserver.
Ohh, a Danish domain. Welcome to registries who try to validate nameservers
Thats a common issue, not only with .dk but also with .dk. Your domain is still associated with a different Cloudflare account which has fiona and rocky assigned. You first need to remove it from that account.