In these uncertain economic times, sellers often find themselves concerned about receiving payment for goods sold. More and more businesses are suffering cash flow problems often as a result of their own customers becoming insolvent. Demanding payment up front is simply not a commercial reality for most businesses. Businesses can find themselves living in fear of one of their larger purchasers reneging on payment due to a lack of cash flow or insolvency. The knock-on effects of such an occurrence may be devastating to the seller.