(CNN) A Dallas mother was told by her child's school district that it would cost her $600 to see a video that showed what happened to her 5-year-old daughter on a small school bus in November.

Audrey Billings did so, and what she saw left her crushed.

"I was devastated, I cried," Billings told CNN on Thursday.

The video of the November 11 incident shows the 5-year-old getting pushed, pulled, poked with a pencil and grabbed around the head by at least two students on the bus over a period of nearly 14 minutes. The 5-year-old is also shown trying to fight back against the other students.

She calls out to the bus driver several times during the assault and starts crying as she continues to get hit. The bus driver does not respond on the video, which does not show the entire bus ride.

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