GoSolr lacking service response - SHOCKING

We installed the Solar system about a year ago. We have had some issues with the setup, and we upgraded to an Extra Large system. We had some really bad thunderstorms just after upgrade, that ruined the Inverter. First they wanted us to claim through our insurance quoting the contract at us. BUT, they haven't provided the COC for the new upgraded system, so we quoted the law and the contract back at them where they ended up replacing at their cost. Since then our batteries would be below 30% by 3am everyday, draining while we're sleeping. We then had an Eskom feeder cable burn out, leaving us without Eskom power and the solar system alone managed to provide enough electricity to power the house. After this Eskom situation was fixed, the system doesn't show the amount of Grid being used, uses the Grid to charge the batteries while providing power to the house, the batteries kept at 100% and not providing power to the house and not even using the solar panels to charge or provide power. The only way to use the system is to switch off the Grid. This results in almost R300 per day being bought on Pre-Paid electricity. We have logged tickets, we have sent emails, we have made phonecalls for GoSolr to come and check the system. Sparki was here yesterday for annual maintenance, made some changes to the settings, and left. No change. I have to say GoSolr customer service is appalling. This is utterly unacceptable. When there was no grid, the system carried us. But the moment there is grid, the system is not working anywhere close to how it should and we pay GoSolr AND have to buy a tremendous amount of additional electricity. This does NOT make sense AT ALL! We are disappointed, utterly upset and disgusted at the complete lack of service or response. Frankly, ANYTHING would be better than what we are experiencing now.