Apple is heading to court in London on Monday to defend against a class-action lawsuit seeking £1.5 billion ($1.9 billion) in damages

Apple has abused its dominant position by charging app developers an unfair 30% commission through its App Store, costing British consumers up to 1.5 billion pounds ($1.8 billion), a London tribunal heard on Monday.

A four-year-old class action lawsuit filed in the UK again Apple's App Store fees will finally go to trial on Monday, January 13 — seeking up to 1.5 billion pounds ($1.83 billion) in potential damages.

Apple is being accused of taking advantage of its dominant position by charging a 30% commission on app sales. This, according to a London tribunal, led to UK consumers being overcharged by as much as £1.

STORY: Apple has abused its dominant position and cost British consumers up to $1.8 billion.That was what a London tribunal heard on Monday (Jan 13).The U.S. tech giant is accused of charging app developers an unfair 30% commission through its App Store.

Apple is facing a lawsuit filed on behalf of around 20 million iPhone and iPad users in the UK, who claim they were overcharged for app purchases.

Apple was accused Monday of abusing the dominant position of its app store at the start of a court trial in the UK, with plaintiffs seeking £1.5 billion ($1.8 billion)