What do I do with my membership card after the membership ends?

As the membership card includes a biometric identification information (fingerprint), in terms of GDPR and data protection it is recommended to dispose the card if the card cannot be kept in a place where there is no risk for possible misuse. You can dispose the card i.e. by cutting it in half.

If you plan on returning as a member in the near future, you can also save the membership card in a safe place and use the same card when renewing your membership.