Most apartment complexes have several cctv cameras installed and they usually hire a contractor for providing technical support.
The person handling the cctv contract will usually get quotations from several service providers.
They will then select the service provider and pay for the services.
In a few cases, if the cctv service provider is paid the entire amount upfront, they may not offer good service.
One specific case of poor customer service is how six months after receiving payment, the cctv service provider refused to provide any customer support.
When the person handling the cctv contract contacted the company, the cctv company would tell the customer to speak to the receptionist.