I files a pre-insurance estimate for dental work from my dental plan and my wife's plan, where I am also covered. Cigna Insurance stated, in their pre-insurance estimate that they would cover their portion. I had the dental work done and now Cigna states they will not cover their portion since my insurance is the primary insurer, even though I am covered under a separate policy through my wife's plan and the premuims are paid each month. Cigna has always paid in the past years and now wants to change their policy even though they... read full review »