Broward County Public School Question

If there are any parents who can advise me I’d greatly appreciate it. On Friday 10/18, my child was left behind at school by the school bus. They keep all the kids in the cafeteria and call bus numbers. When they called her number she went to the spot the bus always parks in but it was not there. She asked two different teachers for help finding the bus, both of them shrugged and said they didn’t know. A 3rd teacher pulled her to the side and let her know the bus was gone. She called me hysterically crying and scared. It was her and 3 other kids from the same bus route that were left. This morning I questioned the driver and he said it’s the school’s fault. The school, of course, put all the blame on the kids. Seeing as it happened to a few kids that all ride the same bus, I’m flabbergasted. I’m still really upset something like this could happen but no one is taking responsibility. Have any of you ever experienced a situation like this? I’d greatly appreciate any advice.