Verizon - AFNI and Allied collection agencies

Early this year, I moved and paid my final bill to Verizon. In fact, I had overpaid them and received a check for a credit. Later I received a bill from a collection agency (AFNI). I spent several hours on phone calls, making copies and faxing the agency proof that the bill had already been paid.

Yesterday, I received a bill from another collection agency (Allied). I called them. They said that the reason that I was still getting letters was that Verizon had not cleared the bill. So I called Verizon. They said that my balance was zero, but when I reached the Financial Services they said that they were still showing a balance and there was nothing they could do; it was now up to the collection agency. Needless to say, I'm not happy. If anyone out there knows of a class action suit against Verizon for this type of egregious behavior, I would be happy to join it.