Last year in May of 2010, I was given an estimate for my Invisalign which stated that my Insurance Metlife Dental would pay $2000 and all I had to pay was $1000 out of pocket. So I agreed and got the Invisalign. Metlife approved it but did not pay the full amount, instead they started making monthly payments. In January 2011 we changed dental insurance to a different company and now Metlife has decided to stop making payments on this expense. Therefore, the dentist is saying I have to pay for it. I dont think this is right. If someone agrees to make a payment on a debt, you cant just not pay it anymore just because the customer decided to go to a different company. And I really think that the dentist should hold the insurance responsible for this debt, not me. Afterall, they did give me a price of what I was going to pay which I paid. I even had them call the insurance directly and get approved just to make sure that I wouldnt end up paying more. I have heard lots of horrible stories about Metlife and their customer service. I do not know what to do? What should I do and how can I fight this?