Signing up to email broadcasts from local authority and governmental agencies to be notified of service information and scheduling.
A classic example could be the garbage collection service sending email notifications about when pick ups will occur for specific types of garbage.
When will the blue/green boxes, heavy items, recycling, toxic waste be collected? Did they go past my area and if not whats the expected arrival time?
Rather than calling the service provider one could sign up to be notified in advance and be told if there will be a delay or cancellation.