Marketing Materials - What's the Norm?

[Jennifer Katherine De Loughy]

My broker takes 46% of my commission: 40% in general and then an additional 6% that was explained to me as being for "advertising, office materials/use, etc." I've been using office materials accordingly. I recently found out that my broker does not give out envelopes. They don't even want us using their paper with the company letterhead - we have to buy and print our own. Is this the norm? What's the norm when it comes to marketing materials provided by the broker?