BCBS did the same thing to me. Luckily my surgery date is still two or three months out. it ended up that they made a mistake the letter "just gets printed" so I contacted the insurance company. after several hours of research to figure who to call. There is an insurance coordinator at the facility that you were going to get the surgery done at contact that person and they will tell you who to contact at Blue Cross Blue Shield. BCBS finally said that it was an approved facility
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