Hi Tue,
In Denmark the consumer ESU flow is still being enabled in stages, so clicking Enroll now can show temporarily unavailable in your region until Microsoft flips it on for your locale. Microsoft's ESU page says the rollout is phased and that timing and options vary by region. That is why you are seeing the Coming soon message.
What to do now? Just keep everything aligned for Denmark and let the rollout catch up. Make sure the PC is on Windows 10 version 22H2 with the latest cumulative update, stay signed in with your Microsoft account, and leave Region and Language set to Denmark. Once Microsoft enables enrollment for your device in DK, the same Enroll now link will complete normally. Microsoft also confirms you can enroll any time up to 13 October 2026 and you will receive any earlier ESU updates after you enroll, so you will not miss fixes because of this delay.
For EEA specifically, Microsoft states that if you sign in and keep using your Microsoft account on the device, ESU is available at no additional cost, with a simple 60 day check-in requirement. There is also an optional one-time purchase path if you prefer not to remain signed in. Those EEA rules apply in Denmark once your device is eligible.
I hope this helps in some way!