On my order history it says MenEssentials was my vendor. I bought mine November 2012 they may have changed there policy since then. When I order another one I'm going to buy RazoRock/Shavex one that comes in the plastic contaner.It will be awhile though they last forever.
One other tip.... alum (and any deo or antipersp, for that matter) has to be in contact with skin in order to work effectively. So, if your underarms are particularly hairy, you may find it helpful to "manscape," at least to some degree, for better product contact.
Just received a Lafe's Crystal Deodorant block from Amazon. Best deal I could find for an alum block. It's a big cube about 2" on each side. http://www.amazon.com/dp/B0011DKJQ0/?tag=thshde-20