i got a call from a collection company regarding a unpaid bill from XXXX XXXX XXXX back from 2014. I did n't receive any bill or notification from any source before this call from collection. And i check my insurance activity for the past 2 years, all the claims from XXXX XXXX has XXXX balance ( I can provide the claim history, and XXXX XXXX does know my insurance info as they filed to my insurance many times ).