Rocio Concha, Which? Director of Policy and Advocacy, said: "It is right that the regulator is prepared to investigate this potential abuse of power. The overwhelming market power that Google and Meta hold in digital advertising markets is bad for consumers if it pushes up the cost of advertising and leads to them facing higher prices. "The government needs to legislate to empower the Digital Markets Unit as soon as possible. Consumers and other businesses would be better served if the biggest tech firms were subject to a pro-competitive code of conduct that prevented harm from occurring in the first place, rather than acting retrospectively." -ENDS-