Is there any additional ways to get someone banned for feeding? please read

Was in a RANKED game and have short video proof of our adc offering to give people kills and walking under turrets giving people kills. I was wondering if there was anyway i could speak to riot support directly rather than submitting a request and not having it actually get resolved, the entire game banned her except a Viktor that our adc was feeding who, was also very toxic. please help if you have any additional information.