I have had a rough day and expect to have a great ...

I have had a rough day and expect to have a great night at sheraton LAX. I called the guest service and ask for free wifi access code. He mumbled the password. I was asking for clarification and he shouted to me at the phone. This is truly an unacceptable behavior in highly service industry. This should be improved by Sheraton so that other people would not experience this.