When moving in you will receive a "laundry-card" with login-info. You stock the card with value online. The card itself has a small cost which will be added to your rent once (see the pricelist for current price), and it is pre-stocked with a small sum, so that you can use it right away.
If you loose your card, a new one can be purchased at your local service centre. Please remember to turn your laundry-card in when moving out, it can be used again.