Error 21920311: Seller is not eligible to use Refurbished Item Condition in this Category.

The value specified in the ConditionID field is an eBay Refurbished condition, and the seller is not eligible to list with this condition. All sellers must apply for and qualify before using any of the following Refurbished item conditions: 'Certified Refurbished', 'Refurbished - Excellent', 'Refurbished - Very Good', and 'Refurbished - Good'. See the eBay Refurbished Program Seller Center page for more information.