As a rule, it is possible to use our website without giving any personal data. If personal data (such as name, address or e-mail addresses) is collected on our site, this is always done on a voluntary basis wherever possible. This information will not be passed on to third parties without your express consent. We would like to point out that the process of transferring data on the Internet (e.g. when communicating via e-mail) can feature security vulnerabilities. It is not possible to protect data against access by third parties completely. The website operator expressly objects to the contact details published in accordance with legal notice requirements being used by third parties to send advertising and information materials which have not been expressly requested. The website operator expressly reserves the right to take legal action if unsolicited advertising information is sent, for instance, in the form of spam.