Pep Guardiola said "no-one has given us anything in four and a half years" after Manchester City were denied a penalty in the win over Southampton.
City opened a 14-point lead at the top of the Premier League after a commanding 5-2 victory over Saints.
Manager Guardiola was unhappy after the video assistant referee failed to award a penalty, at 1-1, when Phil Foden appeared to be fouled by Alex McCarthy.
"It's just incredible the penalty was not given," Guardiola told BBC Sport.
The City boss, who is six wins away from a third Premier League title in four seasons, said match referee Jon Moss was not to blame.
But he said it should have been picked up by VAR and a spot-kick awarded.
Instead, the VAR match centre said: "The on-field referee felt that Alex McCarthy got a slight touch on the ball, and VAR couldn't see anything to disprove that."
Guardiola, in charge of City since 2016, added: "Jon cannot see it. It's happened but VAR is there for this. I don't understand it.
"VAR is here to help. In these four and a half years, everything we have won, it's for absolutely us. No-one has given us anything. Zero."
'I don't dive'
The controversial moment happened after Saints keeper McCarthy failed to control a back-pass and dived at Foden's feet to try and prevent the City midfielder from scoring.
After McCarthy's challenge, and with the ball loose in Southampton's penalty area, England forward Foden tried to carry on playing.
Afterward he said he thought it was "100% a penalty".
"I'm an honest guy, I don't like to dive," Foden added.
"I always try to stay on my feet but I would like to get rewarded with a fair decision."
'If Foden rolled around he'd get a penalty'
Former Newcastle and England winger Chris Waddle on BBC Radio 5 Live: "It is a penalty. Fair play to Phil Foden for getting up and trying to get the ball to score, though.
"Foden was honest, but if he had gone down, and rolled around he'd have got the penalty."
Former Liverpool and Scotland midfielder Graeme Souness, speaking to Sky Sports: "That is a penalty. They just make it up as they go along."
BBC Radio 5 Live senior football reporter Ian Dennis, who was commentating at the match: "I've just had an opportunity to see Alex McCarthy's challenge on Phil Foden and I am bamboozled as to why that wasn't a penalty.
"He catches his left foot. I thought that was a clear and obvious error, and that is what VAR was brought in to change."