Appointment window of 1:30p - 4p scheduled with do...

Appointment window of 1:30p - 4p scheduled with door-to-door employee. Phone number and email address were provided to the employee, at the time of scheduling. Appointment was to occur in 2 days. No one ever showed or called to cancel or reschedule the appointment. I adjusted my schedule to accommodate this appointment, despite my misgivings on tying up such a large portion of the day.
No one showed up.
Someone showed up an hour later, was nice, efficient & wasn't pushy.