Poor customer service and **************

I purchased a cell phone from GOMOLEMO at JET CHRIS HANI CROSSING on the 13th of March, i explained to her that I wanted a phone that had space, had good quality pictures, and wouldn't give me problems. she suggested I take a HISENSE and it would be perfect for me. As an old person I trusted her suggestion and paid cash for the cell phone, she told me that if I was not happy with the phone she i must come back with the slip and we will look for an other selection . i used the phone from the 14th of march until the 17th of march and in that period the phone gave me the following issues, the battery lasted for only 3 hours , the volume is too low , when i charge the phone the phone and charger becomes extremely hot , the phone gives me storage full notifications while it has no pictures nor music . i went to the store on the 18th of march to ask for an exchange, i asked that they give me a new different cell phone and i will pay any additional cost to get a better working phone. instead of being helped by the staff AYANDA called out her Colleagues and they publicly , made loud comments on how i was a **** and i wanted a better phone cause i have money now . Ayanda said they refuse to give me an exchange and i must give her the phone back she will take it to the factory to see what is the problem with the phone then they will give that phone back to me , they further said its not their problem that i don't want that phone anymore and want to buy a better one . i must see what i do with that phone . i further asked them about the term Gomolemo told me about that i can bring the phone back before 6 days and they will give me an other one . they rep**** to say that does not imply to me . i am very upset with the Ayanda and Gomolemo because they treated me with no respect as a customer .