It is possible that, by mistake, an older LuxTrust certificate has been configured for online purchases (3D Secure technology).

Solution: Please verify in your S-Net or S-Net Mobile whether the right LuxTrust certificate has been assigned for 3D Secure and if this is not the case, change it for each card individually under “Settings” – “Payment cards” – “Payment settings”. 

In case of doubt, don’t hesitate to contact Spuerkeess Direct under (+352) 4015-1, in order to guide you through the process or to examine your individual case.