Selling cheap quality and want to rip you off 4K later

I bought a very expensive speaker as it came highly recommend by my brother in the UK. Six month later the speaker stops working. After spending 4000 on a speaker when there are cheaper speakers for 200 you don’t expect such things to happen. Speaker was taken in to “supplier” who apparently repaired it. All the same I say to take a lot why should I accept a damaged and repaired speaker which is less than 6 months old when I have no guarantee it will not pack out on me in another 6 months and the warranty will be void by then. Personally I feel if their speaker was faulty they should keep it and give me a replacement. This is the policy with most of retailers that if something you buy breaks down in a year you get a new one. Why am I an exception. For anyone who wants to buy things like these on takealot please don’t. Rather walk into makro or game as you are guaranteed of service immediately and efficiently!!!!!