When an appointment is scheduled, sometimes the appointment does not appear on the correct date and time in my calendar, or the person receives a confirmation email with the wrong date indicated. Sometime it’s the wrong day. Like in the booking it says Tuesday 7Pm but in my google agenda it’s Wednesday 5:30 PM ???  Or sometimes the system confirms an appointment on the wrong day. The message says, “Your appointment is on the 12th,” but the actual appointment is on the 13th. 

It makes it unreliable