Last week I received a call from Bay Area Collections about demanding payment on a four year old bill from American Medical Response. I never received a bill, I had insurance, and would have absolutely paid anything that I owed. AMR says that they sent a bill for a couple of months and I didn't respond (because I never got it!!) so they sent it to collections. That was four years ago and I am now hearing from collections? I have the same address that I have had for twenty years.