I see with the URL now that you are using the PayPal Pro add-on. I tested your form and I received an error processing the card. That may be because I was using a test credit card number. The error (from the source of the page): <!-- Payment Error: 10001 -->
That error requires a call to PayPal.
However, it does not sound like that is what is happening to your visitors. They just never see your confirmation page after submission. Everything else is working correctly?
I noticed you have an old version of jQuery being loaded in the page by the theme:
That should be version 1.8.3 for WordPress 3.5.1. If you let WordPress enqueue jQuery, the correct version will be loaded and it may take care of this error.
How did you add 'processing' animation to the right of the submit button? Can you remove that?
Does the same thing happen (fails to confirm the submission) if you submit from the form preview?
If you are using AJAX, can you try without AJAX and see if the result is the same?
If none of these steps help, please start at the beginning by checking for theme and plugin conflicts by using these instructions http://rkt.gs/testing
Posted 7 years ago on Wednesday March 6, 2013 | Permalink