no, that's not what I mean at all.
the if statement to show the message is:
<?php if(isset($_SESSION["waue_contact-us1_1_Status"]) && $_SESSION["waue_contact-us1_1_Status"] == "Success") { ?>
so make sure you have the correct session name by using the var dump. Is that the session returned by the var dump? is the value in the dump for that session Success?
and make sure you have the session start line.