promoter comedy play books in English in London

I am a comedy writer of plays in London. I published many comedy play books in English in Xlibris publishing company in America and Self-published in Amazon. Most of my writings are sold on amazon.com. I need promoter for selling comedy play book ( MUSICAL YOUTH ) any amount . There is 50% discount of amazon price . So the promoter can trade on my writings after getting the above discount. I have the copyrights.