Getting a bad review removed isn't always easy, but it is sometimes possible if...

https://sierra-wiki.win/index.php/Does_Erase.com_Guarantee_Google_Review_Removal%3F_Setting_Realistic_Expectations_for_Your_Brand

Getting a bad review removed isn't always easy, but it is sometimes possible if the feedback violates Google's official policies. While results vary based on the specific circumstances, you aren't powerless