“We’re concerned that Which? has found mobile phone companies are still penalising customers for their loyalty.
“We were pleased when most providers agreed to reduce or eliminate the handset loyalty penalty earlier this year. But we’re still disappointed some providers didn’t go further and that Three still hasn’t taken any concrete action to address the loyalty penalty.
“Today’s findings show that even two years after our super-complaint was made, Ofcom still has a lot of work to do to stamp out the mobile loyalty penalty once and for all.”