'Volume discount' is a commonly used term during contract negotiations. Such negotiations, especially given this subject, can be tough. Strangely, the collection of agreed upon bonuses is often not completed. Rebate Management is the solution.
Many suppliers offer rebates (also referred to as kick-backs or bonuses)
to encourage customer loyalty as well as high-volume purchasing. They refund an amount to a buyer at the end of a given period if the buyer has purchased X amount of items. When establishing contracts, buyers often spend a lot of time and energy on volume discounts. However, the actual collection of the agreed upon bonuses is handled with a lot less care.