I sustained a workplace injury (working on a movie set) and the production company never filed the paperwork, so their insurance would not cover me. I refused to pay the bill and it showed up on my credit report and caused issues for three years. Eventually i found my wrap gift from movie and inside the set medic had put a copy of the paperwork. I scanned it and emailed it to the hospital and within 72 hours it was taken care of and like a month later it was off my credit report. (Time frames may be off as this transpired in 2015)