We are dumbfounded!

Almost two years ago, my husband was taken out of work and deemed disabled by Metlife under his longterm disability insurance that he purchased through his job. He was required to apply for Social Security Disabilty which he did. First he was denied, then recently approved for Social Security Disability. Under the order, Metlife was supposed to supplement the SS to match his current disability payment. Within days of receiving notification of approval, Metlife decided that my husband was not sending in the paperwork properly and discontinued his claim until further paperwork could be submitted. The representative was told that he was approved for SSD, and information was sent to Metlife as requested. Now he gets a call stating that their (Metlife) nurse has reviewed his records and concluded that he was no longer disabled by their definitions. We are dumbfounded! Nothing has changed since day one except his condition has worsened and he has been diagnosed with several other issues. Are we just screwed?