Is Familieretshuset a scam?

More than a month ago my boyfriend and I applied for an international marriage on Familieretshuset webside. We paid the 2.100 DKK fee. They asked us to reupload our passports which we did. Since then, there is no answer from their side. I’ve written them a couple of e-mails. Today I tried to call them. The machine told me I’m number 5 in line and so on until I got first in line. They ended the call then, without picking the phone. Any idea how to get in touch with them or is this a scam agency?