She refused to admit to it? That did not mean anything since her father would not believe her anyway!
"Dad, believe me. It's true. We were only discussing the matter of the refund. There was nothing else to it. Dad, you can't always deny my change for the better just because of your groundless doubts, right? That's unfair to me. I really didn't do it. Dad, didn't you say that you wouldn't give up on me? I didn't do anything wrong and I'm not plotting anything, but you're treating me with this attitude. Dad, you lied to me. You said that you would definitely teach me and help me as long as I was willing to change. You're clearly biased against me and think that I can't do anything right like your obedient daughter, Qiao Nan. Dad, you're treating me unjustly!"
Qiao Zijin got worked up toward the end and her tone was filled with indignation. It sounded as though she truly had no ill intentions and it was Qiao Dongliang who was maligning her while she was innocent.