Yesterday, mum-of-five Katie sought out help to track down internet users who had mocked her disabled son Harvey in a series of posts on Twitter and Instagram.
She had named and shamed several trolls for their actions, branding them "disgusting" individuals and identifying them online with the hope of putting a stop to the mockery.
Now, one of the users has issued an apology to the former glamour model, telling Katie they are "truly sorry" for posting the inappropriate content.
They took to their Facebook page to pen an open letter to Katie. It read: "For the record, I never made any of these Harvey Price pictures I just posted it. I would like to apologise to Katie Price and family and this will never happen again.
"I am a lovely person inside and I think Harvey is a lovely person. I really do. It was very immature of myself. This will not happen again and I am deeply sorry. I agree what I posted/shared was disgusting - it will NEVER happen again."
They added: "The people that know the real me know that I am a genuine loving person. Again, I am sorry."
13-year-old Harvey was born with a range of medical problems, including the rare genetic condition Prader-Willi, autism and visual impairment.
Katie recently told fans she was "so angry and upset" to see that Harvey and his disabilities had been targeted online.
As well as sharing screengrabs to out trolls that had poked fun at her son, Katie shared a series of tweets urging for more to take a stand against trolling.
She tweeted: "There should be more done to stop this happening to people like me and others so angry and upset."
"I've realised so many people mocking my son," she said. "Out of all my children they pick on the one with disability."
Katie has since been inundated with support.
She has always openly discussed Harvey and his medical conditions, in hopes of raising awareness about his condition. While she admits looking after him can be challenging at times, Katie insisted being a mum to Harvey is the most 'rewarding' job.
Speaking on Loose Women recently, she gushed: "I absolutely love Harvey so much and I would never change anything about him. Yes, it's challenging but also rewarding. He's a great character and I love him and I don't think anyone should be ashamed at all having a child with disabilities."
Katie is also mum to son Junior and daughter Princess (who she shares with ex-husband Peter Andre) and Jett and Bunny - her children with husband Kieran Hayler.
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