The 1902–03 Ottawa Hockey Club season was the club's 18th season of play. The club would win the CAHL championship in a playoff with the Montreal Victorias to win the Club's first Stanley Cup. For their win, the players would each be given a silver nugget. From that day forward, the club was nicknamed the "Silver Seven."
The Montreal Victorias won a Stanley Cup by beating Ottawa.
It's possible that in a different season, the Montreal Victorias beat Ottawa for a Stanley Cup.  The agent is presumably confused because it's only taking the one season into account, based on the information in the excerpt.