FNB insurance is an ********* ****

I have insurance with FNB and when I lost my insured DJi drone, they tried all means to discredit me as their client in order to reject the claim. Firstly they wanted proof of ownership after the fact, which I sent pictures and a video taken a year before and they still claim that it was taken after the reported loss. They demanded some technical information from the istore, which is not available according to Apple technicians. I then sent them screenshots of my flight logs which is up to a week before the loss and they say that I’m dishonest in terms of the date of loss. Ignoring the fact that the drone DJi Mini 4 Pro with RC2 operates independently from the phone. Upon rejection, they said I can query and will get a response within 40 days. It’s been 5 months since my query and zero response, other than they have been busy and overwhelmed. Their legal cover is equally useless because they can’t help on claims against their fellow departments.