Volkano Carelessness

In 2021 December I bought a Volkano Cobra Series speaker and even though it was only used on some weekends, 5 months later, it started giving issues and not coming on unless it was plugged in. I sent an email to TechnoMobi where I had bought it, I was told to send it to them by courier and I didn't complain about that, I just sent it. After some waiting, I was told that the speaker was being replaced and that I was being upgraded. They then sent me the exact same thing, but with a broken off piece. I had to send this back yet again and I waiter for longer. Eventually I was sent a Volkano Anaconda series and it must have been around October and then speaker had been initially sent back in July.

Now the same speaker that was said to be a better speaker is doing the same thing and again, this thing is only being used on certain weekends. I contacted TechnoMobi and the lady has been super helpful and efficient. Now today she sends me an email from Volkano saying the warranty from the first speaker carried over to the replacement speaker and thus has expired so they're not gonna do anything. How can one item's warranty carry over to another item? What nonsense is that? I will be taking this to consumer protection and as high as I have to, because this is completely unacceptable. If they don't fix or repair the the thing, then they must give me my money back immediately and know I will spread the word about this. I will not be disregarded.