Amazon is facing a one billion-pound ($1.3 billion) collective lawsuit from British retailers who allege that the online marketplace misused their data to boost its own market share and profits.

The British retailers association also takes aim at Amazon’s “Buy Box,” claiming that Amazon manipulated which retailers were selected for the coveted placement.

The e-commerce giant faces allegations of misusing retailers' proprietary data and manipulating the Buy Box for its own gain.

The British Independent Retailers Association is asking for 1 billion pounds in damages from Amazon, which they argue is using private data from small, third-party businesses to drive sales of its own products.

The lawsuit has been launched by British firms over claims it misused their data and pushed them out of the market to inflate its own profits.