Rocio Concha, Which? Director of Policy and Advocacy, said: "Good broadband and mobile connections are essential for day-to-day life and telecoms firms must do more to support those struggling to afford their bills. "Which? is calling on telecoms firms to do a better job of advertising their social tariffs, including how they differ to commercial tariffs, and to ensure customers do not incur any additional charges when signing up to discounted rates. "Telecoms firms should allow customers on any tariff to leave without exit fees if their costs change mid-contract, regardless of whether or not these increases can be said to be 'transparent'." ENDS