Clicks, has no stock of Flu Vaccine. Waste of time making booking.

Clicks, stop advertising Flu Vaccine when you do not have stock. I made a booking with Clicks Trade Route Mall Lenasia for Flu vaccine. After waiting more than 30 minutes in the queue, I was told, sorry no stock. "Make another booking". Surely if you have no stock, inform the public so they do not waste their time going to Clicks