Guildname already exists


i’m the GM. our guildname already exists at warcraftlogs. but nobody is unsing it. (Orden der Dunklen Rose - Die silberne Hand). so i created “Oden der dunklen rose” is it possible to delete the unused and rename “Oden der dunklen rose” into “Orden der dunklen rose”?

please excuse my bad english. >.<