Liverpool manager Brendan Rodgers has spoken to referees' chief Mike Riley about the way officials have treated his team this season.
Rodgers is unhappy that key decisions have gone against Liverpool and is at a loss to understand why.
The Reds boss, having seen striker Luis Suarez denied what he felt were two penalties in their last two matches, was prepared to bide his time even after Jonjo Shelvey's red card and Antonio Valencia's penalty award against Manchester United on Sunday.
But having been frustrated again by refereeing calls in last night's Capital One Cup win at West Brom, he felt he needed to put his point across to the head of Professional Game Match Officials Ltd.
"I rang Mike Riley this morning. I think he was expecting me to call him a bit earlier," said Rodgers.
"It has just become quite obvious, especially after last night's game.
"Jordan Henderson had a horrendous challenge on him and the player was not even booked, yet Andre Wisdom made a really good tackle and won the ball and got booked for it - and there have been a number of incidences.
"Us being a sporting team, and going by the letter of the law, decisions seem to pass us by.
"We've had a few sendings-off, a few penalties given against us and absolutely nothing we've been given at all so I hope that changes.
"We would hope we would get better decisions over the next few weeks."