The advert, in the paid-for listings that appear above organically generated search results, was headed: “Welcome bonus to new players Casumo 100% and 20 free spins,” and also invited people to “create an account & play now!”
Casumo told the ASA it had systems in place to stop its adverts appearing when certain search terms were used, to avoid fuelling problem gambling.
But the company said it had not included “unsubscribe” within those terms because it felt it was associated with customers wanting to be removed from mailing lists or marketing, rather than trying to block themselves from gambling.
The ASA said: “We acknowledged that on receipt of the complaint Casumo had immediately taken action to address where their ads were served. “However, because we considered there was a strong possibility that vulnerable consumers seeking to prevent exposure to gambling ads and access to gambling websites might have been served a gambling ad following a search for ‘how to unsubscribe from all gambling’, we concluded that the ad had not been responsibly targeted.”