. on february 5 , 2010 , moody 2019s investor services reduced its credit rating of senior unsecured long- term debt of the royal bank of scotland n.v . ( formerly abn amro bank n.v. ) , which had issued letters of credit that support $ 1.4 billion of install- ment notes received in connection with the compa- ny 2019s 2006 sale of forestlands . following this sale , the installment notes were contributed to third-party entities that used them as collateral for borrowings from a third-party lender