Welcome to the Sixt rent a car customer service center. Here we offer you a view of our useful online customer service. With your customer login, you can directly update, alter or expand your personal data or rental agreements stored with Sixt, and also find out whether you are eligible for any bonus according to your amount of Sixt travel miles. You can cancel a reservation you made for a rental vehicle online by filling out an online cancellation form or quickly file a lost property request. Sixt places a high priority on customer service, and continually strives for new ways to assist you. As a special service towards our customers we provide you with the opportunity to download online copies of your receipt, once you have returned your rented car. Log into our service center to access your online receipt copies.