Super Junior announced their mexico stop of their tour, but instead of happiness, mexican ELF experienced only distress. The venue was too small, in old facilities and in unsafe enviroment with too high a price per ticket. Super Junior always visited an arena in the city instead.
ELF took it to twitter, where they trended for almost 3 days and made several request to change the venue to a bigger one. Otherwise threatening to boycott the concert.
Several media reported it too..
Eventually it reached SM and during radio show Eunhyuk promised the issue is being worked on.
Later on, the venue was really changed and it was implied that ELF better sell out the requested concert place. ELF managed to sell it out within an hour.
End of story. Point is, you don't mess with mexican ELFs.