The two paid-for Google adverts regularly appeared when people searched Google for "Jack and the Beanstalk."
Jack and the Beanstalk is a slot game available on 32Red, with both its related adverts promoting 150% bonuses of up to £150 ($186.51) on a first deposit.
The ASA said Jack and the Beanstalk is a highly popular children’s fairytale and, as a result, there was a high chance the phrase could be entered by children, or by adults accompanied by a child.
Operator 32Red announced it removed the ads as soon as they were brought to its attention.
The firm also clarified it conducted other checks to ensure no other high-risk titles appeared during similar searches.
The ASA announced it was pleased with 32Red’s swift action to remove the ads and accept responsibility.