There are several places online where you can still purchase Premiere Elements 12 at the price of the authorized reseller.
Have you checked out places such as Amazon or resellers which are specific to your country location?
But, are you really looking specifically for Premiere Elements 12. It is no longer the current version. Premiere Elements 13 is
the current version (released September 24, 2014). A tryout version of 12 can be found
You can explore it before you purchase from your authorized reseller of the product.
Please let us know if the above is the information that you seek.