Richard Lloyd, Which? executive director, said:
“The CMA is right that this merger, if it is allowed to go ahead, would seriously reduce choice and competition for UK customers in the mobile market. Which? has also written to the European Commission to set out our concerns.
“Fewer players in a market rarely leads to better outcomes for consumers and the remedies proposed in other merger cases, including those in Austria and Ireland, do not seem to have sufficiently protected consumers.”