Solar Warehouse SA

We bought a loadshedding kit at Solar Warehouse SA, they delivered it yesterday, put it on charge, connect it and then nothing happened as soon as the electricity went out so does the inverter as well. We phone them this morning, explained what happen and nothing, they told us to get an electrician., to do what, repair their sisteem? They are pathetic and their after sales as well. Will never encourage someone to buy from they. They told us they have policies in place to protect them from the law, so they can sell all there broken stuff and you must accept it because you already paid?