If your credit card details cannot be stored, please proceed as follows:
- Check that the credit card number and security code are entered correctly
- Check that the validity of the credit card and the cardholder's name match
- Log out of the app once and login again
- Install the app again if necessary
Your credit card details will be verified by our payment provider "SumUp".
If you are still encountering issues, please contact our support team at +49 30 20 89 89 411 or send an email to firstname.lastname@example.org.