Unfortunately I can´t help you as I never used this paper.
I am writing just to share that I had exactly the same response (or lack of) from Premier. I emailed them a couple of times asking about a guy that contacted my studio presenting himself as a business representative of Premiere. He had all the brochures, samples and business cards, but his name did not figure on Premiere´s website, so I emailed them to check his credentials and they never replied... and, obviously, lost a possible business opotunity.
Looks like they don´t care about customers.
Best regards.