I ve been trying to get the number to a clinic to ...

I ve been trying to get the number to a clinic to reschedule an appointment, but nobody answers at the number they gave me. Now, I ve been on hold for 20 minutes trying to get connected. Disorganized, inefficient, wastw of my time. And every time I go there, because I m primed there, I wait 30-45 minutes past my appointment time to be seen. They need to get it together.