A woman who gave a clothing store in Florida a bad review on Facebook says the boutique publicly fat-shamed her and sent her harassing text messages in retaliation.

Amanda Gifford claims her nightmare experience with Kelly Brett Boutique began when the Tallahassee store refused to exchange or refund a dress that was too small.

She then wrote a review on the store’s Facebook page warning other shoppers that the clothing runs small.

From there, Gifford said that the situation “spiraled way out of control.”

She started to receive nasty Facebook messages Wednesday from the store’s page telling her she was in “denial” about her clothing size.

“If you think you are a ‘medium’ vs our sizing charts… that’s denial on your part,” Kelly Brett Boutique said in messages provided to The Post. “Sad, fat people want to think they are a ‘large.'”

Gifford said the store’s owner, Kelly Brett, also re-posted her wedding photo on her own page and fat-shamed her. The now-deleted post from Brett read: “So I get a ‘bad’ review from this gal…she ordered a size XL…? But our sizing isn’t correct….She’s easily a 2XL.”

The store also appears to have removed the original post and review after other customers came to Gifford’s defense in the comments.

Gifford said she was shocked that a retail store would fat-shame a shopper.

“Never would I thought a simple review would turn into a business owner threatening me and worse,” she said.

Kelly Brett Boutique didn’t respond to repeated requests for comment.

Gifford contacted The Post and said the situation has been resolved.