You contacted sales for a support question. What did you expect? As for the answer to your question, from the PayPal website: I have tested this with my own sites and can confirm that it absolutely works just as that agent described to you.
Yup, it is working for my Buy Now button too. You don't need a Paypal to pay through it, I have a Credit Card form there and I do not need to sign up for a paypal account. Which country are you from ? Maybe there is some restriction for your country if you are not doing this for a subscription button