510. Retirement Party Invitation (Guest)
511. Retirement Party Invitation and Gift (Internal)
512. Return Authorization
513. Return of Check Missing Signature
514. Return of Late Payment and Denial of Discount
515. Return of Product on Free Trial
516. Return of Purchase Order and Request for Advance Payment
517. Revocation of Guaranty
518. Sale on Approval Acknowledgement
519. Sale on Consignment Acknowledgement
520. Sales Lead
521. Second Overdue Payment Reminder
522. Second Request for Correction of Billing Error
523. Second Request for Payment (10 Day Demand)
524. Second Request for Refund on Returned Merchandise
525. Second Request for Renewal of Service Agreement
526. Security Agreement
527. Settlement Offer on Disputed Account