Discovery Insure don’t care attitude

I have had endless problems with a claim going back to February 2021. Two of my Caneras are not working properly and the service provider says it’s the monitor which was broken by Discovery Insures first service provider. Discovery refuse to take accountability for this yet tge monitor was removed from my premises and broken their service provider did this. Discovery keeps on telling me that I should email different departments that never come back to me. I am terribly upset about this.