Norwich City Football Club has been criticised after it sent fans a promotional gambling email.
James Grimes of The Big Step campaign group said it had been alerted to the email by a fan who is a recovering addict.
He said it was disappointing after The Championship club publicly announced a move away from having gambling sponsors on their shirts.
Norwich City have been contacted for comment.
The emails, seen by the BBC, offered bonuses for people who signed up for a Spreadex Sports Account and placed a minimum bet.
The Big Step campaign is calling for an end to all gambling advertising and sponsorship in football.