Disgusted, Frustrated with the Unfair Treatment we received from Frontline Underwriters

I'm struggling with Frontline Insurance for more than a month now. They approved my claim for resultant damages after a storm and the contractors came out and started to work by ripping the Notty Pine off my walls on our main bedroom, including some Flooring and also started with prepping the walls. Frontline then stopped the contractors from continuing the work on the same day they started. They then send an Assessor out and now refuses to honor the approved claim. The contractors left our main bedroom as is. My brokers, Securitas informed me that Frontline came back to them yesterday stating they not paying and honoring any repair work. This is totally unacceptable especially as the claim was already approved.