The Catalans are four points behind their opponents, Real Madrid, after Sunday’s round of fixtures.
Barca beat Villarreal 4-1 on Sunday to keep their floundering title trusts alive, while Madrid had edged Athletic Bilbao 1-0 prior in the day.
Sergio Ramos scored the main goal of that game when official, Jose Gonzalez granted a penalty for Dani Garcia’s foul on Marcelo in the wake of checking with the pitchside VAR screen.
Gonzalez then chose not to give Athletic a penalty, when Ramos got Raul Garcia at the opposite end.
“I saw the game in Bilbao, another win for Madrid. Our message, which I will repeat: I feel bad, but VAR is not at the level that we hoped for the best league in the world.
“Since the league restarted, it’s not been very fair and that’s having an effect on results. And it seems it always favours the same [team]. There have been many games when VAR has favoured the same [team] — and many teams have been disadvantaged as a result.
“We spoke with the [Royal Spanish Football Federation] about it in the past. VAR should help referees but in the images everyone has seen in recent weeks it’s not been fair,” Bartomeu told Movistar.