Poor service on household content claim

We are still struggling to finalise a claim more than 6 weeks after the incident. Our house was hit by lightning and destroyed a couple of our appliances and devices as well as our backup solar power system. Not once has the agent followed up from his side. Everything stalls unless we follow up from our side. Initially the service provider made an appointment to do an assessment, we asked for an expert since we had no way of checking everything that could be damaged. The provider didn't honor the appointment and did not even bother to call and make an excuse. Eventually when they did arrive they did not have the necessary expertise to assess the damage to our solar system. This was deemed as a communication error and the claim was denied - even though everything was in perfect working order before the lightning strike and is now completely inoperable. It took almost 5 weeks to finalise the first part of the claim since the provider took weeks to provide a report... In this time no follow up from the agent and no support. We've since supp**** the agent with a report from our installer (as requested) to confirm that our inverter and batteries are in fact damaged. We were promised that another assessment would be scheduled but again no feedback.... No support. We've been patient long enough but having to live off grid electricity is costing us thousands in unnecessary costs and power outages leaving us unable to work from home as we need.