We have a contract with AT&T as our local provider and exclusive long distance carriers. For month Info Source USA Directory has been fraudulently charging our AT&T invoices. AT&T cannot do anything about it. If we refuse to pay, we become delinquent with AT&T. I have not found any way to reach this company (MainStreet Telephone is doing the same thing). The charges are about $50 - THAT ADDS UP!