Originally Posted by pych

My father is flying J for the first time in his life. Flew into YYZ on AC and now onward to PTY with CM. Tickets booked through Aeroplan on AC stock. When he got to the MLL today (International I presume) he was told: "no, this lounge is for AC customers only."

Been trying to figure out if this is true. Couldn't find anything to that effect on ac.com. Rather it says that Star Alliance Business Class passengers should have access to the MLL.

Am I wrong here? If so, thats good to know.