I guess you found the solution by yourself.
I just run the test in your website and i got this message:
Mail enviado correctamente
Gracias por su pregunta. Lo contactaremos lo mas pronto posible
I believe it says: "Mail sent successfully, and we will contact you shortly"
If still doesn't work,I mean, the message doesn't receive to your email, then check your mail settings in your joomla. And make sure that PHPMailer works in your server. If not, try to use SMTP Email (but i am not sure if your hosting provider will let you use it)
Forum Support.
Regards.