FAQ Online Payment Facility VMI online payment facility offers secure payments using Worldpay and is operated by RBS Bank. To make your secure online payment you must enter your VMI Account Number with your VMI Order Number and/or your VMI Invoice Number which has been sent to you by your Client Contact or our Accounts Department. Please enter the amount to be paid in the relevant field and process your payment. WorldPay supports the following payment types Security and Guarantee VMI Refund Policy PLEASE ENTER EITHER VMI ORDER NUMBER OR INVOICE NUMBER Client/Company Name: VMI Job Reference; Amount to Pay: