On the Internet Service Providers page: http://www.nzconnection.net/index.php?title=Internet_Service_Providers

For Xtra / Telecom New Zealand, you have a red cross under the WiFi column.
Xtra / Telecom New Zealand Do provide wifi hotspots see here: http://www.telecom.co.nz/content/0,8748,204163-1005,00.html?nv=sd

Would a admin or anyone who’s knows how to change that table mind doing this change?

PS: I would have done this edit my self, but I am unsure how to change the table