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Received a bill dated 10-15-19 for a Bone Replace Graft 1st on 7-10-18 for $545.50. I did not have a bone graft. Why am I getting a bill 15 months later for a procedure I didn't have? I would like this bill absolved and a letter from Aspen Dental stating it has been absolved. I called the local office and was told a ticket would be sent. I don't know what that is and why the office couldn't take care of this bill?