<<<<<<<<<<< YOUR LETTERHEAD >>>>>>>>>>>>>>> Date Letter of Authorization Dear Billing Manager, <Company Name> has entered into a Managed Services agreement with Metropark Communications, Inc. who will act as our primary bill paying entity. This letter provides authorization to your company to accept payments on our behalf from Metropark, who will be managing our vendor accounts including payments to you starting with our next billing cycle. Please update our account to reflect the new billing address and new contacts below. Billing Address Change U.S. Mail: <Company Name> / Metropark 4050 Wedgeway Court Earth City, MO 63045 Email: AP@metropark.com Phone: 314-336-3925 Facsimile: 314-439-1313 Billing Contact Addition Lauren Warren Primary Billing Contact lwarren@metropark.com 314-485-3148 Sarah Hays Customer Account Manager Contact shays@metropark.com 314-485-3185 Sincerely, Customer Name Title Cc: Metropark Communications, Inc.