Try the following solutions:
Enter the card number correctly. Do not enter spaces or dashes. If your card has a security code, enter it correctly in the payment screen.
Make sure the details(Expiration Date, CVV code) are entered correctly as mentioned on your card.
Credit/Debit card expired? Make sure that the credit/debit card isn’t expired.
Make sure that you haven't exceeded your credit limit.
Still need help? Please send an email at email@example.com.