Hi, I'm receiving net sales royalties for product I created and sold to a publishing company. The licensee owns the publishing company but also owns the shipping company that ships the product. He is subsidising shipping by cutting into the list price of the product. For example a products listed to the consumer at $15 with $4 shipping and he's claiming that shipping is actually $7 and only paying me my 10% royalty from the $12 and not the $15. I'm afraid he can just make up any figure he likes and reduce our royalty. Is this legal? Is there a way to stop this happening as I'm losing quite a lot of money.