Bad service

They have the most rude drivers. I was told delivery is scheduled for 12pm till 4pm then before 12 I get a call that he is outside that time it's at my work place and I mentioned I'm still with a patient I will come once I'm done but in less than 5 minutes. And guess what when I got there to him received work phone call and he heard I'm discussing work issue. The driver just left like that. When I called the call center they told me drivers aren't allowed to wait so does that mean a minute after they call I must quickly be there or else they will leave. The lady said yes.. what a wow