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 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 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)

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.