Police are asking the public for information on the last hours of Daniel Christopher Starr, 20, whose body was found next to the railway tracks between Neston and Hawarden Bridge railway stations on May 12.
"We are conducting a thorough investigation and are working to establish the full circumstances surrounding Daniel's tragic death" said Detective Chief Inspector Iain Miller, from British Transport Police.
Campaigners argue the firm's 'dynamic pricing' model is unfair, which they say means ticket prices can vary widely.
Carly Ann Harris sobbed in the dock at Cardiff Crown court as she pleaded not guilty.
The ride-hailing firm hopes to challenge Uber.