At the trustee’s website (link above) you can register and make payments directly from your bank account. It is not possible to set up auto payments. You have to log in every time you want to make a payment.
You send a money order or cashier’s check to: Russell C. Simon Chapter 13 Trustee P.O. Box 1898 Memphis, TN 38101-1898
Write on your money order your case number. Payments must start right after filing, do not wait until money is automatically deducted from your pay check.