Refereeing body PGMOL has admitted Brighton should have had a penalty for Pierre-Emile Hojbjerg's tackle on Kaoru Mitoma in Saturday's game at Tottenham.
The incident was one of a number of decisions that went against Roberto De Zerbi's men.
Hojbjerg seemed to catch Mitoma in the second half but referee Stuart Atwell did not give the decision in real time.
VAR did not intervene and Brighton eventually lost 2-1 to Harry Kane's late goal.
BBC Sport understands there has been direct communication between PGMOL chief Howard Webb and senior Brighton officials acknowledging the mistake.
If Brighton had won the game, they would now be in sixth, a point behind Tottenham with two games in hand.