Terrible service !!! Faulty items

I bought a bluetooth headset from Esquire Technologies on the 30th of September 2018. When I wanted to use it, it was not connecting to my laptop at all so I took it back to the shop to have a look at it. I dealt with a laddy Lebo. She said that she was going to let me know still the same day what is happening. she never got back to me and whenever I phoned she didn't have an answer for me and promised to phone me back. Which she NEVER did. Eventually after 2 weeks I she said that I can come get a new one. I got the new headset and the same day I phoned and spoke to Roshlin and told him that it was making a horrible noise and not charging at all. I returned it on day 3 from when I purchased it and dealt with Roshlin. I told him that it was unacceptable that 2 brand new headsets was not working. The packaging was damaged and sooooo dirty almost looked like it was used. He told me that he would ask for a refund for me. It is expensive and I don't want a headset that doesn't work as I need it for training purposes. I phoned last week and all they said was they will get someone to phone me which I know they never do. Then I phoned and spoke to Shaylin which said he will follow up for me and phone me back. Guess what he never did. Then the next day I phoned again and asked to speak to another manager which was apparently in a meeting and was also told he will phone me back. AGAIN no-one phoned me. So yesterday morning I get a call from Lebo saying that they fixed the unit. A BRAND NEW HEADSET THAT I HAVE NEVER USED FIXED!!!! I said to her why must I get a fixed item if I paid for a brand new one. I also told her that I asked Roshlin for a refund because the service is terrible and really bad quality headsets they are selling. This was yesterday @ 8:37 when I spoke to her. She said that she promises that Roshlin will phone me back within an hour ........... I am still waiting........ I've have never in my life dealt with such *********** people and poor service. I want my money back so that I can go buy a headset someone else. It is almost a month and a half later and I still don't have a headset for my training !!!!!!!!!!!!!!