Solar support

I have just invested money into Solar via a company called E-engineering. The pre-sales and installation went very well, until it came to supporting the product.

I was initially sold a an inferior product, due to scalability issues. I then upgraded the system to allow me to build on my current infrastructure that I had purchased. After a few months I noticed that I was not actually not saving much from the system and I queried the problem and it looked like the batteries were being charged from my electricity supply and not from my solar panels. This was then rectified late in 2017, not before I complained to the Consumer affairs who assisted to get the people to site. Dec 2017 my system showed and error, which I then reported. It took the guys about a week to attend to y call and during this time the system went dead completely. The engineer then informed me that the batteries had gone faulty and needed to be replaced. Again, customer service was that 'good' that during the wait for the batteries, the factory closed down.

It is now 2 months and my system is still not working, even sending numerous mails and telephone calls to the company. I need to know who and how I can take this further. Is there any way that I can get them to remove the system and give my money back so that I can go to another company for my solar requirements.