The 19-year-old works as a professional look-a-like for the N-Dubz star, and turned up at try outs for the series earlier this year.
Ashley even performed Tulisa's song Young, before the pair swapped places on the stage and panel as a joke.
However only Tulisa gave the teenager a yes to the next round, meaning there was no bootcamp for Ashley.
But she claimed that producers had forced her to sing the song.
"I’m raging they made me sing that song. They made it look like I was just there for her," she said. "I have a decent voice but they were only interested because I looked like Tulisa. They wanted a reaction.”
Writing on Facebook, she added: “At least I got to sing in front of 6,000 people and the judges. It was a brilliant experience meeting them.”