Some 29 million people in the UK could be entitled to up to £30 back on Apple or Samsung smartphones.
Read moreBy Jane Wakefield
Technology reporter
By Jane Wakefield
Technology reporter
By Natalie Sherman
Business reporter, New York
By Leo Kelion
Technology desk editor
By James Clayton
North America technology reporter
By Leo Kelion
Technology desk editor
By Leo Kelion
Technology desk editor
By Chris Baraniuk
Technology of Business reporter
By Leo Kelion
Technology desk editor
The court decision that cleared the way for AT&T to buy media company Time Warner rested on "fundamental analytical errors" - at least that's what the US Department of Justice is arguing as it appeals the judgment.
Antitrust attorneys filed papers today for the appeal they promised last month.
They say the deal will increase AT&T's bargaining power, contrary to Judge Richard Leon's earlier ruling.
They also say it was illogical for Judge Leon to conclude the deal was intended to produce savings, but not maximise profit.
The EU's competition chef explains why she believes Google deserves a record-sized fine over Android.