I want to subscribe to a payment plan, but when I enter my card details I get an error. What can it be?

I want to subscribe to a payment plan, but when I enter my card details I get an error. What can it be?

To process the payment of your platform we apply the 3D secure protocol to guarantee online purchases and reduce fraud. When initiating a payment with the 3D secure mechanism, the merchant automatically directs the user to their bank's website where they must enter their verification (through confidential information that is not reflected on the card, such as a code that the financial institution sends the personal phone).

If your card does not have a verification system, it is possible that the purchase process has failed, since we cannot verify the payment. To solve it, please, contact on the one hand with your bank to activate it, and on the other with us, to look for possible solutions.