Tired of being bullied

Not PCOS related!!

But need to rant

I have a younger sister that 9 years old( little my baby)

My siblings and I are extremely close. My sister has been getting bullied by one of her use to be best friend for about 90 days so far. We have went to the school and changed her class, her teachers and she no longer ride the bus. Well everyday it’s something the teacher call my mom and I telling us what happen to my sister (the girl kicked her in the back) so how it’s always her fault and they always stated that. We went to the principals about the issue and nothing happened. We have done everything we can think for this child and nothing is getting resolved. Now it’s getting to the point where she is tired of going to school her grades are dropping tremendously. The was a pony where the bullies(there two of them and they are sisters) we gone for 2 weeks and we seen that she was happy, she making new friends, grade are improving and no issue what so ever!!!

Now they are back and she’s going through it again we have talked to her parents(the mom run over her husband and she so ignorant, the dad is a lawyer) and they have not yet talked to their girls about bullying others. Remind you guys they all live in the same neighborhood!!

If this was your child, or sister what would you do? I feel like my mom is giving up at this point. But if I can make a difference in her life I want to take action now!!!

I love this child to pieces and I be damed if something happens to her.