ESBI Voice Pro Unauthorized Charges on Verison bill Internet

I problably would have caught this sooner if  I was more careful and really checked my bill I use online billing so many times I do not click into the bill to read it just pay the balance. However today I reaaly looked at it and noticed that I was being Charged !3..95 a month for a voicemail pro...billed through Verizon by ESBI. Reserched them on the internet and found all these complaints. I called them  ( I know I never signed up or authorized them to charge my verizon account for this service.. because I use Verizon Voicemail) After the normal having a fit and demanding they stop billing me , I told them I wanted a refund of the monies charged since I could only see back a year on my Verizon Billing. They offered a refund for three months ($37) and I told them .... Class action lawsuit........ she then put me on hold and said ( because I told her I can see at least you have been charging me this for at least a year) we will refund 167 and change for the last year........... I told them wait how long have you been charging this,,, ( threatening Class action  again) agin put on hold and then she came back and said we started charging you in 2009!!! What!!! I want it all back or as soon as I hang up I will contact every consumer complaint on Ripoff.com and I am sure I can fnd enoughpeople who will join me!! She said they were going to refund me to my Verizon account $401.45 plus all taxes! it would take 1-2 billing cycles. Do not back down...............make them refund it all back!!! I am contacting an attorney to make sure they refund me! Theifs!!!!!!  If anyone is interested in stopping these thiefs let me know!!!!!