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With credit card payment, the authorisation of the payment can in some cases „not work“ due to fraud-prevention mechanisms. In addition, a missing or incorrect online PIN, an incorrectly entered SMS-TAN or a missing security code on the back could be the cause („old“ credit card).
Sometimes an address check (stored address / order address) is also carried out. This depends on the respective bank: we have no influence on this.
If possible, please choose a different payment method.
Further information:
We offer 3-D Secure 1 and 3-D Secure 2. How does 3-D Secure 2 differ from the previous procedure?
Essentially, 3-D Secure 2 is a further development of the previous 3-D Secure protocol. With every credit card order, up to 100 data points are transmitted to the card issuer (bank); based on these data points, the card issuer carries out a real-time risk assessment. If a transaction is classified as low-risk, it can be authorised directly and without further interaction from the buyer.
However, if fraud is suspected, the buyer is asked to confirm their identity again by means of an additional security check (e.g. using push-TAN). The risk assessment runs in the background, imperceptibly for the buyer.
