Bad bad bad service

I bought a phone at foschini mimosa mall Bloemfontein on 06 April 2018 only to find fault with the phone when I got home. Decided to return the phone the very next day 07 April 2018 only to be given attitude by the area manager Kim. No. 1 the box of the huawei P 10 lite was not sealed. No. 2 They convinced me to buy the P10 stating its the best. When I came back to let them know that I had issues and wanted another phone, Kim and Istarted a screaming p and brought the whole store to a stand still. Kim told me that it was my choice to buy the phone and I must live with it because according to her, there is nothing wrong with the phone. Well bottom line is I left the store and left the phone there. I have decided to name and shame because I was treated like a low class citizen. If foschini does not right their wrong I will take the matter up with ICASA and seek legal recourse. I never thought a reputable company like TFG Foschini group would treat a customer this way, especially coming from a store/ regional manager who is supposed to resolve issues.