I just called the gamestop employee i spent 30 mins talking to.

I just called the gamestop employee I Spent 30 mins talking to in the store about World of Warcraft after recieving a job application from him. He told me to call him back "in the middle of something right now". I wanted to ask what his battle.net tag was so I could play on WoW with him. It had been roughly an hour after I visited the store to talk to him that I called. Is this normal or rude and should I call him back (Josh) to ask so we could possibly play World of Warcraft together? no rude jobs or responses please. Thank you!