wpcf7_mail_sent & ajax/js

I am hooking into wpcf7_mail_sent in order to then build an HTML form which is then submitted to a payment provider. Unfortunately the only way I can get this to work is to use the wpcf7_load_js to disable the Javascript which isn’t ideal as this means a page refresh for validation. If I don’t do this the spinner continues to spin next to the submit button forever.

Does anyone know if there is anyway to “break out” of the ajax to allow the redirect without completely disabling javascript on all forms?

Thanks.