The TOWIE beauty, 24, braved Simon, Cheryl, Mel B and Louis to sing a cover of Clean Bandit's Rather Be, but it didn't quite go to plan.
Simon, 54, stopped Essex girl Jasmin halfway through and asked for something else.
Jasmin gave an a cappella performance of Every Time We Touch by Cascada, but she failed to impress, with Simon telling her she doesn't have a good voice.
Now Jasmin has hit back at the judges, insisting she was kept waiting all day, building up her nerves and leaving her exhausted.
She told The Sun: "I was completely shattered. You're waiting around, getting more and more nervous watching everyone around you.
"When I went into the audition, the nerves got the better of me, I was so tired. If an A-Lister had to wait 15 hours backstage she wouldn't give her best performance either."
Jasmin accused Simon of not giving her a proper chance, continuing: "It's ridiculous. 15 hours is ridiculous.
"Simon did mug me off, I feel like when I was signing I was getting to the chorus, and actually the chorus is the best bit where you can actually see your vocal ability in the song and when he had stopped me I just thought 'oh c***'."
But Jasmin hasn't given up on her musical dreams, and is pressing forward without the help of the X Factor.
"Every cloud has a silver lining because I'm making my first single, so you've got to think of the positives.
"The show has opened doors for me, it's given me the confidence, now I'm out there and I've made my first single."
Do you think Jasmin should have gone through to the next round?