Liverpool have contacted UEFA and Real Madrid over the 1,800 allocation they have been given for their Champions League second leg tie at the Bernabeu in March.
Real Madrid have supplied Liverpool with the same number of tickets they controversially gave Chelsea last term, with their ground undergoing significant redevelopment - risking the ire of another British club.
Releasing a statement on their website on Tuesday, Liverpool said that the allocation they had been handed was 'significantly less than expected'.
'This allocation is significantly less than expected for this game,' the club said.