Pick N Pay Fourways Mall

I was at the Pick n Pay Fourways Mall on the 1st December 2019 and was insulted by the store manager by her actions and words. A white female store (did not get her name) was very rude to me and my husband. I went in to purchase as advertised a "Ideas 2 plate stove" at R129. I looked around in the appliances isle and could not find any in stock. There was nothing on the shelf and the by the looks of things in my opinion the hotplate was never on the shelf as there was no price tags anywhere. it Looked like the product was never stocked in store. A Pick n Pay employee called Tsepho was passing by in the isle and was going to the back storeroom to check for pots that another customer enquired about. He told me that he is going to the back to check for the pots and the stove. He came back and said that" it would appear that both products were not delivered to the store". I was asked to go to the front cashier and offered a raincheck for the stove. We went to the front and gave my details and was waiting for this "Raincheck" to be signed. Everyone at the front was very helpful. From nowhere this store manager came and interrupted Tsepho from signing the raincheck. She was rude and said that it was a Black Friday special and took off with the lady who was taking my details down. She took the Raincheck back and did not give it to me. What upset me is the way she spoke and blatantly **** through her teeth. Is this how managers lie and treat customers.? she **** in front of everybody and made me feel like a nothing in the store.