To enhance the security of your payment, we then use the security protocol 3-D Secure. This protocol requires that you enter an additional security code that can be a simple authentication (password, date of birth) or a dynamic authentication (e.g., a single-use code that is transmitted by SMS on a mobile phone).

• If you are not familiar with the 3-D Secure protocol, we advise that you call your bank so it can explain to you how this protocol works with respect to your card, since the terms differ depending on the bank that issued the credit card.
• For banks practising dynamic authentication by sending a code by SMS, it is not unusual for the SMS you receive to contain several codes. Make sure you enter the correct code. For example, AXA BANK sends you the following SMS: "AXA bank Info. Hello. To authenticate your order for EUR 12.50 on website 6373050, please enter the code 999456777. ". It is this last code (in bold) that is to be entered; the first code (in italics) corresponds to the identification of our online sales website.