You can find the forms for Betalingsservice web here (only available in Danish).
Register for Betalingsservice web or make changesTo be created as a Betalingsservice web customer, or if you need to make changes and/or order new chip cards, fill in the following form:BSW01 – creditor agreement and ordering a chip cardApplication to create debtor agreements via the InternetIf you would like to generate, change or cancel an agreement allowing your customers to register for Betalingsservice via a pop-up on your website, you should fill in form BS07:Form BS07 – online registration
The form can be filled in online before being printed, signed and posted.
Remember to sign the form before sending it.