What are the Card Types on the Card Category Filtering and what is an Unknown Card Type?

Question:

On the Credit Card Connector, Card Category Filtering can be done, using a selection of "Accept," "Review", and "Refuse".

There are five different card types listed, alongside with "Unrecognized". What do they mean and how can they be differentiated?

Answer:

There are several types of credit cards, which have different contract offers with according categories.

As an example:

MasterCard has a classic card (Which is the Standard Card on the Selection), also additionally MasterCard offers a "MasterCard Gold", which has additional features, which is displayed as a "Gold Card" within the Portal. See more details about it here:
https://www.mastercard.ch/de-ch/mastercard-fuer-sie/finden-sie-eine-karte/mastercard-gold.html

If a customer pays using a card, which has not been defined as any of a Gold, Business, Platinum or Premier Card, it would fall under an "Unrecongized" Card. Using the selections, you can choose to accept the payment (if possible), review it, or if the payment should be refused in the first place.