Yes, mine from Priceline in Albury on the way through last time. Couldn't remember the exact price or brand though! They do work well and are heaps cheaper then the "real" deal.
Not true. The deodorant blocks are usually made of Ammonium Alum which should not go on your face. It is way too strong. Just make sure the product contains Potassium Alum.
For the cheapest checkout Tolumba.com.