Claim Closed due to disagreement of assessment

I've been a client of Budget Insurance for many years and received excellent service except for one claim incident where the books was closed on me on a flood damages claim for which I could not agree on the settlement amount offered to me. I was offered a low cost, light weight (75kg) replacement lounge corner suite at a chain store as replacement set for a huge, high quality and heavy wooden frame (155kg) 6 seater lounge suite inheritate from close family, which was damaged during a flood in 2014 in the Northern Cape. I perceive this "take it or leave it" treatment I received on this case as *********, unacceptable and not what I would have inspected from Budget! If this is not set right very soon will I be forced to find an insurance company that will value my bussiness and treat me right on such matters in future.