US singer Selena Gomez has been accused of leaving rehab four weeks early.
It was revealed on Thursday that the former Disney star had received 14 days of treatment at The Meadows recovery facility.
A spokesperson for Gomez confirmed to RadarOnline that she had voluntarily checked herself in for emotional issues and stressed that it was not for substance abuse.
Now reports have surfaced claiming that 21-year-old only completed the first two weeks of her six-week course, leaving the treatment centre early to attend the Sundance Film Festival.
"Selena Gomez ignored the advice of medical professionals and waltzed out of rehab just 14 days into a six-week program over the strenuous objections of the rehab staff," reports celebrity news website TMZ.com.
The website also claims that Gomez was in fact suffering from problems with alcohol, marijuana and prescription medication.
"Sources close to Selena tell us just after New Year's she checked into a program at The Meadows called DAWN - for alcohol, pot and Rx Ambien - in addition to what her people believe is an unhealthy union with Justin Bieber," the TMZ report said.
Gomez has been in an on/off relationship with Bieber since 2010 and it's thought his wild lifestyle has had a negative impact on the singer.
The star was seen on the red carpets at Sundance, held in Utah, looking happy and healthy. She was praised on style websites for looking laid back and relaxed, in simple chic outfits.
But TMZ have reported that staff at The Meadows are less than happy with Gomez's early exit.
"That's not the way the medical staff at The Meadows sees it ... the treatment program is 45-days and Selena bailed four weeks early. We're told the staff feels it's essential in any recovery to complete the therapy," the TMZ report says.
"Selena is telling her people ... she completed the toughest week, which the facility calls 'Survivor's week' so everything is fine," TMZ reports.
