The media regulator said it was disappointed O2 raised prices more than was advertised when customers took out contracts.
Most Recent Articles
Trump caps US refugee admissions at 7,500 - mostly white South Africans
The president sets the limit at 7,500 for the coming year, a dramatic cut from 125,000.
The Papers: 'The Andrew formerly known as Prince' and 'meet Mr Windsor'
The Royal announcement that Andrew will be stripped of the title of "prince" dominates Friday's papers.
Heartbreak, headless dummies and 'eggy' Shakespeare: Celebrity Traitors fight to the death
A gruesome challenge follows yet another celebrity murder on the reality TV show, which nears its finale.
Stop avoiding your bank balance and other ways to manage your money better
If you're struggling to get on top of your money, here are four ways to help you manage it better.
Pornhub says UK visitors down 77% since age checks came in
The site tells BBC News it believes people are viewing riskier sites - but they may just be using VPNs.
Martha Kearney: I'm worried about Britain's wildflowers - so my husband and I planted a meadow
The decline in UK wildflower meadows not only threatens wildlife, say experts, but could drive up certain food prices
Long A&E waits causing heartbreaking suffering, charity says
Patients are dying in corridors and others left for hours in soiled clothes, says Age UK.
Five charged in overdose death of Robert De Niro's grandson
The men are accused of running a drug ring in New York City that sold counterfeit prescription opioid pills through social media.
Bats are seeking sanctuary in churches - but they're making an unholy mess
A new study estimates that about half of all churches in England have bats living in them.
The American adoptees who fear deportation to a country they can't remember
Thousands of US adoptees do not have citizenship despite being brought to the country as babies decades ago. Now many fear deportation.
Cat Burns' new album shows a softer side to the Traitors star
How To Be Human finds the star grappling with grief and heartbreak, instead of murdering celebrities.
How teenager gave a street concert and was caught up in Russia's repressive past
Diana Loginova sang songs critical of the Kremlin. The 18-year-old and her bandmate are now in court.
Hundreds of energy-intensive businesses to see bills cut by £420m from next year
UK Steel said while the increased support was welcomed, the government could have gone further.
Letting agent apologises for 'oversight' on Reeves rental licence
The company says its property manager offered to apply for the required licence but this never happened.
Andrew stripped of 'prince' title and will move out of Royal Lodge
The dramatic move follows weeks of intense scrutiny over his links to convicted sex offender Jeffrey Epstein.
What we know about Andrew losing titles and Windsor mansion
The language of Buckingham Palace's statement is "very brutal", royal historian Kelly Swaby tells the BBC.
Is this finally rock bottom for Mr Andrew Mountbatten Windsor?
Stripping Andrew of the title 'prince' is colossal, says the BBC's royal correspondent Sean Coughlan.
Is this finally rock bottom for Mr Andrew Mountbatten Windsor?
Stripping Andrew of the title 'prince' is colossal, says the BBC's royal correspondent Sean Coughlan.
Fenerbahce games against Israeli sides moved to Munich
Fenerbahce's home EuroLeague fixtures against Israeli sides Maccabi Tel Aviv and Hapoel Tel Aviv are relocated to Munich over security concerns.
'We saw people murdered in front of us' - Sudan siege survivors speak to the BBC
Harrowing accounts from people who have escaped an RSF assault on the besieged city of el-Fasher.