Getting a negative review removed isn’t as impossible as it seems. Google has...

https://wiki-planet.win/index.php/What_Are_the_Main_Reasons_Google_Removes_Reviews%3F_A_Strategist%E2%80%99s_Guide

Getting a negative review removed isn’t as impossible as it seems. Google has clear policies against spam, conflicts of interest, and fake content. While not every request is successful, your odds improve significantly when you provide solid documentation