Multiplan/PHCS I went out of network with , Horizon, united healthcare and aetna in june 2015, and to my suprise my bills where being cut by Multiplan, . When I contacted them they said I was in there network and they sent me a copy of a contract I signed when I was a sole proprieter, but 10 years ago I became a LLC and needed new tax ID, new busness, Multiplan never sent me a new contract and one of there own people told me that and sent me new contract. In october I was told I did not have to wait 90 days to get out , but I should not have been in,I am looking to recover lost income from June to end of October, also in October one of there people called me about a claim and asked me if my TIN# was " my old # that was not valid" so I know they have old out dated files. I sent certified letter to legal dept in October ,over a month ago and have heard nothing and multiplan will not give me the number, it is in bedford Mass. I am also concerned about 2 certified letters that I did not recieve from Horizon stating my exact dates to be out of network that they say where sent, I feel that everthing went through multiplan and that they stopped those 2 letters from reaching me, they where dated june 30th I recieved them by email oct22 from horizon with no return reciept # or signature new york New York