Not a very welcoming nor helpful attitude considering:
a) "Sorry for the simple question.."
>They pre-emptively lead with an apology and request for help.
b) "It does say VDSL on the spec list, but I've seen references to VDSL2 on this forum, and I don't know the difference, if there is one."
>They DID read the spec list and they don't understand VDSL versus VDSL2 and that they would like some clarification if the modem would indeed work with VDSL2. There's ADSL and ADSL2 so I can understand the hesitation to buy the modem without confirming this first.