Subscription payments work in the fashion whereby a card is registered with DIBS via a call to DIBS API and, if the card is not frozen or something similar, a unique ID is returned, which you store in your system for future payments. All sensitive information is stored at DIBS so that you do not have to think about the security aspects when it comes to storing information. There are two ways of executing subsequent payments:
DIBS subscription payment normally requires a special contract with your acquirer. Ask your bank what is applicable in your case.
The subscription package can be purchased as an extra on Premium and Basis.