I bought the system about 3 years ago, and now my ...

I bought the system about 3 years ago, and now my drinking water doesn't work do to filters that cost $200 and a truck roll fee of $50, and forgot to mention that when I called in to report the matter customer service explained preventative maintenance that will be over $300 but when I purchased the system I was told that the system was maintenance free. Not to sure if this was a great investment, I'm back to buying water bottles. Forgot to mention again, the salt pellets have stopped dissolving