B.e.s.t. Undertaking — 512L bus is not coming on times

I want to complaint about 512L bus which route is from Mulund Check naka to Nerul Bus station. This bus is not coming as shown in the chalo app time table. Due to which I and other people has to suffer a lot. Sometimes it's also not showing details of live location of the bus. And sometimes it's coming 3 bus in a row like following each other by stop by stop. Due to which the other time slots of bus are empty. Please take this mail seriously as many people are facing issue due to buses poor management. And We have no choice to go by some other transport facility.