The payment system will be a 3D secure system.
Every transaction has access to a secure password (OTP) for secure payment transactions. If the customer does not receive the otp, suggest the customer to contact the card issuing bank to receive the otp.
In case of unsuccessful payment problems are as follows:
Check. Has the customer's card used to make an online payment before?
After filling in the card information and the back of the card Did you receive an OTP verification code for payment?