AFNI - Verizon Ripoff, dishonest, fraudulent Bloomington Illinois

I received a collections letter frm AFNI Inc., regarding a Verizon account which does not belong to me.

After checking with Verizon back in September of 2005 (this is the third time a collection agency has tried to collect this debt on behalf of Verizon), I was told that somehow my name had become to another person's social security number in Verizon's system. Each of the two previous times, I contacted Verizon, and after hours of being bounced around to different departments, was given confirmation numbers that the problem was taken care of.
I have sent a certified letter to AFNI disputing the debt.

Sarah
Erie, Pennsylvania
U.S.A.