Customer Service

This page aims to assist you with your existing contract. As a Private User with an individual subscription, please use our Subscription Extension form below to extend your membership. Perhaps you have questions to renew or terminate your subscription? Many questions can be quickly clarified with a brief look at our website Questions. If this doesn't help then email us or simply call.

Corporate customers

Please contact us by telephone about your corporate account if you want to adjust your subscription in terms of current users or the licensed products. You will then receive an order confirmation/invoice from us for your new subscription.



If you have additional questions about our offer or your contract, we are happy to help you. You can reach us Monday to Friday from 8:00 - 17:00.


+49 40 - 180 60 560


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