Appointment not notified - Consumer Complaint for Clicks Store - Head Office

I had an appointment with clinic sister at clicks Heiderand Mosselbay mall on the 06/08/2020 at 16:30 and when I got there I was told the sister aint there anymore, The before they send me a reminder of the appointment at Mosselbay Mall , why wasn't there a notification to let you know that you have to go to clicks in Langenberg mall , how are people suppose to know if you don't notify us that you close a click at one clicks and appointments move to another one, in advance, very very poor service