Pro Sites Error Message When Typing a Wrong Credit Card Number

Hi guys!

When I try to use Stripe for paying ( with the test account ) and if I type a wrong credit card number rather than ( 42424... ) it doesn't show me any error, which is confusing because I am not aware of what is happening. I noticed clicking on the paypal tab, there is an error saying "The Stripe customer could not be created. Please try again." but that is hidden inside the Paypal tab if that is the error message I think it is not clear for users to understand that they have entered wrong details.

Regards,
Andy