Did Riot give permission to anyone to use the song Pheonix to do advertise?

There is a Chinese dancer, she said "Riot give me the music track in Sep. 18th, and I am allowed to use Pheonix to design the dance." This dance is an advertisement of a new mobile phone, and this dancer deleted most of the comments which query validity of her statement. Did Riot actually authorize her? Or she is lying? And she said the words above in the comment area, she pin this comment on the top, I think Riot has Chinese staffs, they can read it. Untill now, the "war" on the internet between the fans of this dancer and summoners become stronger and stronger. Of course I am also a summoner, and I go and question this dancer, but she still emphasize that she has permission from Riot to use this song as an advertisement dance