Hello, how may i help you.
Hello, I want to purchase something but my credit card keeps getting rejected
I will be happy to help you with this issue. it seems like a troubleshooting issue. Please try to re enter your card information sometimes we get a number on it wrong.

Tell me how that works for you.
I did try that and still not working
Okay now try to log out and then log in again then re enter it.
Thanks! That seemed to work for me
Great, glad to hear that. Do you need anything else?
That is all
Have a great day.