Warning!!!!! Fraudsters

I bought a phone from them 08/3/2018 it was advertised as an immaculate samsung s7!!! As I thought they are a big company and was assured the phone was 110% I purchased the phone there and then got home and tried it out as I'm not a cell phone technition or expert I couldn't get it working I then took it to mtn in chilli lane rivonia where I was adviced that its not a genuine samsung it is a knock off!!!! And it is sim locked!! I then called them and was told that they will sort it out tomorrow, I thought better of it and went back to them I told the gentleman working there what my problem was and he said he will call the boss, he returned with a whole new story that it's their policy that they will not give my money bac**** And was greeted by 5 security gaurds to remove me from their property!!! I just think for an established company to sell knock offs as genuine products is ridiculus people be very carefull of what u buy from them!!!!