Can’t reach a human for support

I need to have a tech come out and check the signal from the box outside to my townhouse. I can’t find any email addresses and I get nowhere trying to call.

my TV’s are all pixelated, which is exactly what happens when new service is setup at a neighbors house. These are rentals, so many people come and go. This exact problem has happened almost a dozen times and it’s always the same problem, requiring the same fix. 

The tech that installed the new service robs Peter to pay Paul. Their only concern is getting the service that they are installing working well. They have no regard of what their efforts did to other customers. I need to get a hold of someone who can dispatch a tech, to the outside box, to give us back the signal they stole. This stuff is getting so old, especially when paying $327.00/mo. for service.