Hi all - Early january, I got a mail saying I have an unpaid bill that I need to take care of. When I looked at the dates, it is for Nov 2015. The bill was processed in January 2017 and insurance won't cover it because it's outside the 6 -month window. All these years, the dental office submitted all the bills to my insurance company. Maybe this was a miss from them, but it's coming to > $250. I can pick up the phone and sought this out with my dentist. But I also know they won't budge and put the responsibility back on me. Or, they may ask me to pay a part of it. I don't want this to go to collections, if I don't want to pay. What options do I have to tackle this issue? Has anyone ran into similar experiences? Thanks!