<prompt> Human: Hey everyone,I checked my credit score today and saw a bill had been pushed to collections on transunion from a doctors visit about 6 months ago. I never received a bill regarding my visit. How should I proceed? Should I call the doctors office directly or just work through whatever agency this is. The bill is only 86 so I will just pay it in full. Any help with this is greatly appreciated.Edit: Everyone, thanks for your advice. I called the doctors office and they had the correct address, but the bills were never reaching that address. Unfortunately the billing time was literally right around the time my parents were moving from the address. Collections have been cancelled now that it is paid in full and will be off my credit score next month.  <response>: Had something similar happen to me, took me months to sort out a stupid fucking 100 X-ray charge, even after they admitted they had never invoiced me correctly. I will say it lit a fire under their ass when I reported them to the CFPB, so consider that. 