PR Car Audio and Styling Voortrekker Road Goodwood bad service!!!

PR Car Audio & Styling I purchased a double din(touch screen radio/ tape) for my car at PR Car Audio and Styling in voertrekker road in Goodwood about 2 to almost 3 months ago, after using the device for sometime I decided to use the USB part of the tape just to find that it wasn't working, I never used that part of the radio before, on last week Monday the 5th of October 2020 i returned the device and the owner told me that it would take 3- 5 days at most for them to replace it, I went in on Friday and saw my device standing there and I was told that no they will just be sending a new one, I said okay fine I will come back on Monday the 12th of October 2020, when I cam they said no the boss isn't there that they will be phoning me the next day which was today the 13th of October 2020 by 9am, I called them at around 12:30 pm to find out what's happening and the owner told me they sent in the device this morning because his employees gave the wrong device to the courier guy in last week but he will call the supply to find out how long it's going to take for me and call back before 3pm today, I called them now at around 16:13 again because I did not receive a call back and the owner gave me a completely different story saying the supplier didn't call him back, but he told me his going to call them not them him, then he said the courier guy didn't fetch the device yet but yet at 12:30pm he said that the courier guy only fetched the device this morning, then he said he will call them and then he put the phone down I'm my face, I phoned back 4 times after that and he just didn't answer, I called their other number and his wife picked up, she said he was on the phone and she would call me back in 10mins it's been 30 minutes now and she still haven't called, I called back now and their employees said no they gone home already I've tried calling now again to them and they just ignoring my calls, this is very unprofessional and rude from this company and right now all I want is my money back for the device which costed me R2500 from them.