Bad Service

My phone was ****** on the 23yrd of July 2021,I then bought a phone called Boost from Foschini in Witbank downtown on the very same day.I was then asked to pay an extra R300 because my account is still new which I paid.I took the phone home to charge it,then the next day on the 24th in the morning,the phone showed a funny screen and I couldn't do anything with it. I took the battery out then placed it back inside the phone but there was no change.I took the phone back to Foschini with the box and everything.I was then told that I was going to get feedback roughly within a month,I then bought another phone cause I needed a phone.I went to Foschini on the 21st of August to enquire about the phone,only to find out that it is still in the store.It hasn't been collected. I even have emails to prove that Iit wasn't collected when I went to ask for feedback from the store.Firstly I no longer want that phone because it's going to give me problems going forward and I already have another phone,secondly I want Foschini to give reverse the transaction and give me back the extra amount that I paid,thirdly I hate the service that I'm receiving from them.I personally had to go to the store to find out about the phone whereas I was promised feeback in a month or so.My question is whose responsibility is it to give me feedback?If this is what you call customer service,then it sucks.I need someone from TFG to give me a call and give me feedback.I will not take that phone back and I want my money back.My number is ***