NLDS and AT&T phone service - what is your opinion?

I had a call at work today and request your opinion:

1. caller states there was a billing error affecting 5,000 companies in Indiana

2. caller states that the error occurred for customers using AT&T small business phone service

3. caller states that rules require them to contact parties affected by the error within 72 hours of the error, and that the error occurred 2 weeks prior to the date of the call

4. caller describes the error as phone lines being billed at a rate of $54.95 per line rather than the correct amount of $4.95 per line

5. caller states that they are not AT&T but they are NLDS

6. caller states that they will transfer me to a service representative who will ask questions that will be recorded, and whereby I acknowledge that I wish to return to the rate of $4.95 per phone line

At this point, the call is transferred, but the recorded portion of the statement DOES NOT include a statement that AT&T has made an error or the rule of the 72 hour notice.

What does get recorded (their representative is making the statements) is essentially that I have stated that I was 18 years or over (which I had acknowledged) and that I wish to accept a rate of $4.95 per phone line with NLDS. They stated the company name and address and asked me to acknowledge that I did accept the rate. However, since they recited an OUTDATED company address, I had suspicions and stated that I did NOT wish to accept any statements at that time.

The representative stated "WHAT??" and I repeated that I did not wish to accept any statements. The "WHAT???" and my wish to decline were repeated 3 or 4 more times, when the representative blurted "Beeotch" (sorry about the spelling, but you know) and slammed down the phone.

What is your opinion of company NLDS?