I got the offer in the e-mail. Tried to activate it but could not. After several unsuccessful tries and reading the fine print, the offer does not apply if you had another "Preview" in the past twelve months. So the question is if you know I had a free preview within the past twelve months, why in the hell did you send me an offer? You just wasted my time.
Your asking other customers. One guess is because they just blasted out the offer to everyone not checking on eligiblity.
Not sure what sort of "free" previews offer required activation. While I was a Verizon FIos (now Frontier FIOS) such previews were automatic.