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

https://wiki-tonic.win/index.php/How_to_Build_an_Ironclad_Google_Review_Removal_Report:_A_Professional_Guide

Getting a bad review removed isn't always easy, but it is often possible if you know the rules. Google will take down feedback that violates their content policies, like spam or conflicts of interest