One sports betting Web site was refunding wagers on the Packers, who appeared to be robbed of a victory after the league’s crew of replacement officials botched the final play of the game, ruling an apparent Green Bay interception in the end zone to be a Seattle touchdown instead.

The site, Sportsbook.com, sent e-mails to bettors who had put money on Green Bay, alerting them to the unusual decision that their bets would be refunded in the form of a free play on the site. At least one bettor, writing on a Twitter account said to be that of the Canadian journalist Glen McGregor, posted a picture of his computer screen showing the message and quoted the Web site’s head oddsmaker, Russ Candler, as saying, “I can’t stand winning unfairly.”