Hi,

you can find info at www.porsche.de see financial services.
the card is not free. you will get a porsche mastercard and a sen via card (only difference: will how a small porsche logo on the back). 30 days later your old sen card will be invalid and you can only use the new number from that time on. This did not give me any problems as M&M changed everything for me automatically.
still the cost of the card is ridiculous compared to all the parking and washing.