Tess Holliday hasn't been absent from Facebook — she's been blocked.

photo: Instagram/Tess Holliday

UPDATE: Scroll down for updates from Facebook and Tess Holliday on the temporary block and reinstatement of her account. 

Plus-size model Tess Holliday says she's been blocked from her own Facebook account for the past four days.

According to the model, the block happened after she posted screenshots of harassing messages she'd received on the platform. 

Holliday contacted Revelist and said that a Facebook rep reached out to her on Thursday and said, "I have several people working on this today. I should have an update by the end of the day. Thanks for your patience with this. We are working to understand and resolve what happened."

In her Instagram post, she says the temporary three-day block has now stretched to four days. 

Holliday took to Twitter to post the screenshots that allegedly got her banned from Facebook.

She says she initially posted the screenshots to Facebook both for awareness of social media bullying and because Facebook doesn't do enough to help stop it.

"This time it really upset me because they banned the person getting abused [Holliday], which clearly shows that they just block anyone whose image gets reported instead of looking into it ... I honestly just think that if they're going to take such initiatives against bullying and harassment then they really need to do their due diligence," she said. 

Of all the social media platforms she uses, Holliday says Twitter is the best for protecting users against bullies and hate.

In her Instagram post, she also recalled an issue from earlier this year — when Facebook banned an ad featuring her in a bikini because it violated Facebook's health and fitness policy.

tess holliday
photo: Facebook/Cherchez La Femme

"I was silent when Facebook removed an image of me in a bikini because it was deemed as promoting an unhealthy lifestyle, which they later apologized saying it was a 'mistake.' Now this? So let me get this straight: You can't be fat on Facebook in a bikini or talk about being harassed for being fat or you get blocked. But it's OK to post animals and children being abused and other disgusting things?" wrote Holliday. 

Holliday says this is the third time she's been censored by Facebook.

And she's not alone. Instagram, which is owned by Facebook, banned this image from a plus-size blogger in May.

The photo was taken down because of vitriol in the comments, but many criticized Instagram for censoring the photo rather than its trolls. Instagram later apologized for removing the photo. 

And just this month, Facebook came under fire for banning this body positive ad from lingerie brand Curvy Kate.

"I think a member of the public possibly flagged something they didn’t like and Facebook just decided to cancel [our ads] without looking into them," said Curvy Kate's Hannah Isichei, who adds that she still hasn't received clarity from Facebook on why they banned the ad that has now been reinstated. 

It's possible that the temporary ban on Holliday's account could be taking longer to remove because of the weekend, but it's also possible that her account has been permanently disabled.

Revelist reached out to Facebook for comment but did not hear back. 

UPDATE 8/21/16, 9:37 pm: Holliday's Facebook account has been reactivated.

UPDATE 8/22/16, 8:15 am: A Facebook representative gave the following statement to Revelist.

"The profile was removed in error and restored as soon as we were able to investigate. Our team processes millions of reports each week, and we sometimes get things wrong. We're very sorry about this mistake."