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                   142 Points
                   Joined June 2012
                
               
			  
			  
             
            
             As understood  from your query:
since you are not billing your client directly for sale made, you cannot consider it as a baddebts or expenses in your books.
Assuming you work on 10% commission on recovery of sale proceeds you may square off the debt payable by the client against your commission receivable from the supplier.(assuming you account only your commission transactions)