Using Bitcoins To Purchase From Provident Metals

Is there some reason these questions wouldn't be better posed directly to Provident Metals?

https://www.providentmetals.com/pr/...itecoin.html

I went to their site, and found that purchases made with Bitcoins are "not returnable", but you get a "3% bitcoin discount" (as opposed to a 4% personal check discount, for example, or no discount for credit card).

I would assume that when you check out, and choose bitcoin as your payment method, it will state the amount of bitcoins your purchase requires, and give you a time window in which to complete the transfer. If you do not have enough bitcoins, you either empty your cart, or choose another/additional payment method.