dispute of cover

Good day I join dial direct on November I had a burglary at my house week before last. I put my claim at dial direct was covered for 50.000 goods lost cost 30.000 . When I joined the policy the consultant was helping me I told him my house contents will costs 100 000 to be replaced. He then said unfortunately their cover starts on the minimum of 50 000. I was making follow ups they been ducking and diving telling me. They will get bag give me the feedback. Now they telling me I am under insured. They only gonna pay 8500