Our telephone service provider is currently experiencing technical problems with Vodafone, O2 and their cooperations such as 1+1, Unitymedia, etc. As a result, callers from the above-mentioned telephone networks (landline and cell phone) are unable to reach us. The problem is already being clarified by the Federal Network Agency.
If you are affected by this, please feel free to contact us by e-mail at firstname.lastname@example.org and we will get back to you as soon as possible.
Thank you for your understanding and best regards,