Email Discounts, LLC - Enhanced Services Billin Added charges to my phone bill without my consent. Nationwide

Our AT&T bill arrived with a charge of $16.11 attributed to ESBI LLC.  Yesterday, I called the 888 number and spoke to a woman by the name of "Leny" who sounded foreign.  She told me I must have requested this service from an e-mail we received.

I told her there was no way either I or my husband would order this service on-line and then tell you to bill it to our home phone.  I demanded that she credit my account immediately.  She said it would take 1 to 2 billing cycles before it would be applied.  I told her that it was not acceptable and I wanted an immediate refund.  She said she would send me a credit confirmation, but I have not received one yet. 

I am contacting AT&T today and hopefully they will be able to take this off my account.  How can these people continue to operate without being prosecuted?  I also blame the phone companies who routinely allow 3rd parties to charge to your phone bill.  This service has nothing to do with my phone!  I am so livid that I want to get rid of my land line!!