Dischem - mall of the south: Enrol Wellness staff for customer service training

I booked an appointment online at Mall of the south Dischem for 14:45. I arrived in time and I waited at the waiting area because there was no one mending the Wellness Clinic reception. After 10 minutes a nurse came out with a mother and a child. She looked around and went back in and I thought she's only assisting kids , her consulting room is written child care. There was no one at reception to ask any question. When the reception arrived I told her I was there for an appointment. When she called the nurse the nurse was so rude and humiliated me in front of everyone telling me I was late and she didnt see me and I should have came in, but she saw us and went back in. Please send your staff for Customer Care Training. I dont work at Dischem to know their procedure. She should have talked to me politely and let me know when she will be able to see me, that's it. There was no need for her to be so rude.