Hello, there is a confusing line at this page:
http://wikimania2007.wikimedia.org/wiki/Cancellation_Policy
Section : If you pre-registered with accomodation
"Cancellations filed before *Sunday 20th May 2007* Taipei,
UTC+8<http://www.timeanddate.com/worldclock/city.html?n=241>will be
taken into account and partially refunded. However, if you submit it
later than *20th July, 2007*, there will be no refund."
Is it 20 May or 20 July?
Thanks
Dbl2010