If you are member of "Sygeforsikring Danmark" and you have a receipt and have a Danish CPR-number and live in Danmark you can get some repayment from "Sygeforsikring Danmark".
If you have a Danish CPR-number and a "sundhedskort" from the "kommune" you can get some repayment from the "kommune". However, you pay directly at the clinic and have to ask for repayment by yourselv.
Contact your insurance company regarding repayment. You pay directly at the clinic and afterwords you can search for repayment by your insurance company.