Back in August, I contacted Zoom and asked them to clean up one of the properties that they were managing. It was pretty obvious that it was their property, since they'd stuck a big ZOOM sign over the top of some graffiti.
When I went past today, the signs were gone - but the graffiti was still there.
That means someone from Zoom has visited twice - once to erect a sign over the top of graffiti, and once to remove a sign from the top of graffiti - and done nothing about cleaning up the graffiti.
If that was my property, I would be looking for another agent.