Make a link directly from the registration page to handle this instead
of having to first try to finish and then cancel upon failure.
In passing also update the waitlist offer email to explicitly ask the
recipient to go cancel their entry on the waitlist if they don't
want/need it anymore.
{{reg.registrationwaitlistentry.offerexpires.strftime("%Y-%m-%d %H:%M")}} or
this offer will expire!
</p>
+<h4>Cancel waitlist</h4>
+<p>
+ If you do <em>not</em> want to attend the conference, we ask that
+ you cancel your waitlist position as soon as possible, to allow for
+ a faster processing of others!
+</p>
+<form method="post" action="waitlist_cancel/">{{ csrf_input }}
+<input type="hidden" name="confirm" value="1">
+<input type="submit" name="submit" value="Cancel waitlist">
+</form>
+<p></p>
{%else%}
<p>
We will let you know as soon as a seat shows up!
you miss this deadline, you will be given a new chance later assuming
we still have open seats!
+We also ask that if you do NOT want to make a registration based on
+this offer, please click the same link above and cancel your waitlist
+registration. This will make it possible for us to process other
+entries on the waitlist quicker!
+
We hope to see you at {{conference.conferencename}}!