I have a custom object "Retail_Customer_Contract__c" that has child objects "Special_Discount__c" If I go into the master detail field for the relationship the "Child Relationship Name" is "Special_Discounts" but I can not get it to work. I get the follow error :

 'Special_Discounts' is not a valid child relationship name for entity Retail Customer Contract

Here is my visualForce page

<apex:page standardController="Retail_Customer_Contract__c" extensions="RetailCustomerContractExtController" ><apex:relatedList list="Special_Discounts"/></apex:page>

I have tried every name possible for the list="" attribute. I have tried Special_Discount__c, SpecialDiscount, SpecialDiscounts, etc

Any thoughts would be greatly appreciated! 

I have a custom object "Retail_Customer_Contract__c" that has child objects "Special_Discount__c" If I go into the master detail field for the relationship the "Child Relationship Name" is "Special_Discounts" but I can not get it to work. I get the follow error :

 'Special_Discounts' is not a valid child relationship name for entity Retail Customer Contract

Here is my visualForce page

<apex:page standardController="Retail_Customer_Contract__c" extensions="RetailCustomerContractExtController" ><apex:relatedList list="Special_Discounts"/></apex:page>

I have tried every name possible for the list="" attribute. I have tried Special_Discount__c, SpecialDiscount, SpecialDiscounts, etc

Any thoughts would be greatly appreciated!