Bought medication that they already bought at home. - Consumer Complaint for Clicks Store - Head Office

Hi. I went to clicks riverside nelspruit this afternoon to buy a medication. When i get out of the store i decided to call my sister to tell her what i bought she then told me that they already bought it. And i decided to go back to the store and explain to the pharmacist. He didnt even want to listen me. He kept on pressing his phone talking without not looking at me and said we don't return because you were out of that door. I was so disappointed as i was thinking mayb he will reach out of me by giving me some options than to refund me. Like taking something in exchange of this medication, as my medication is till sealed. Now i opened the bag because we wanted to use some of the medication. Now im holding a medication that i cant even use.