CHOOSE THE WAY YOU WANT TO PAYWhen it comes to your energy bill, Ameren Illinois gives you payment options — so you can choose what fits your lifestyle best. Our goal is simple: to make it easy and convenient for you to do business with us.

MOBILEIf you use a smartphone, you can download the free Ameren Mobile app and pay your bills securely via your bank account, credit card, or debit card. The free Ameren Mobile app is available through the Apple® and Android® app stores.

ONLINE PAY Create an online account at AmerenIllinois.com/StartNow to get started. It is simple and worry-free to pay your Ameren Illinois bill electronically. This free service allows you to pay with an electronic check on the date you select. If the same day is selected, payment will post that day to your account.

To make a debit or credit card payment using your MasterCard, VISA or Discover card, or a credit card payment with your American Express card, go online to AmerenIllinois.com. Log in will be required. A convenience fee is charged for each transaction.

BY PHONEYou can pay by electronic check, debit or credit card with a toll-free call to 1.888.777.3108. It’s fast and easy, and Western Union Speedpay payments are credited to your account the same day — so there’s no guessing. A convenience fee is charged for each transaction.

BY MAILYou can mail your payment along with your bill stub to Ameren Illinois. Be sure to write your account number on the check or money order, make it payable to Ameren Illinois and sign it. Do not send cash through the mail. Payments should be mailed to the PO Box indicated on your bill. Please be sure to enclose the bill stub located at the bottom of your bill statement with your payment.

IN PERSONAmeren has hundreds of partner pay-in-person locations, located primarily in grocery or convenience stores. Most are open

7 days a week, have extended hours, and take partial payments. Although many reputable businesses may accept your payments, only partner locations are electronically linked to Ameren so that payment can be immediately recorded. When you pay at a partner location, your payment is generally recorded to your account within a few minutes. If disconnection is pending, it is important that your payment post quickly so you can avoid disconnection.

You can find partner pay-in-person locations by visiting AmerenIllinois.com and clicking “Billing & Payments”in the Customer Service Center or by calling us toll-free at 1.800.755.5000. Payment locations may charge a convenience fee for their service.

PROGRAMS TO SIMPLIFY YOUR LIFEPAPERLESS BILLING SERVICE Ameren Illinois customers may choose to receive their bills electronically, at no charge, through our Paperless Billing service. The electronic bill you receive is an exact image of your paper bill — front and back. Learn more about or sign up for Paperless Billing at AmerenIllinois.com/eBill.

DIRECT PAY If you’re always on the go, Direct Pay is a worry-free way to pay. With this free service, your energy bill is paid automatically from your checking or savings account each month exactly on or 5 business days before the due date — whichever you prefer.You’ll still receive your monthly bill, but without the worry of ever missing a due date or having to mail a payment again! Once you are enrolled in Direct Pay, a reminder message will be included with your bill indicating the date we will debit your checking or savings account. Learn more about Direct Pay at AmerenIllinois.com/DirectPay.

BUDGET BILLINGBudget Billing takes the surprise out of your monthly utility bill. This popular program helps you plan ahead by establishing a set monthly payment for your energy bill. Even when your energy use fluctuates greatly, the amount you pay each month for electric and/or gas service will remain relatively even.

We offer two basic options for Budget Billing: Rollover and Settlement. Choose the program that works best for you!

BUDGET BILLING ROLLOVER PROGRAMThe Budget Billing Rollover Program is designed to continuously “roll over” from year to year. With the Rollover option, you only need to “settle up” (pay the difference between the cost of the energy you used and the amount you paid on Budget Billing) if you close your Ameren Illinois account or your participation in Budget Billing is canceled.

BUDGET BILLING SETTLEMENT PROGRAMThe Budget Billing Settlement Program is different from the Rollover Program in that you “settle up” once every twelve months. Your bill in the settlement month will reflect the difference between the cost of the energy you used during the previous 11 months and the amount you paid on Budget Billing.

THE EASIEST WAYDirect Pay, combined with Budget Billing and paperless billing, makes managing your payment effortless. You will receive an e-mail notification that your bill is ready to view, and that your budgeted amount will be deducted from your financial account on or 5 business days before the due date, depending on the option you selected. At AmerenIllinois.com view your Acccount Details, your payment information and energy consumption and change and/or manage account data. There is no charge for this added convenience.

Sign up for all these services and set up your paperless billing account at AmerenIllinois.com/StartNow.

GO MOBILE FOR ACCOUNT INFORMATIONJoin the thousands of other Ameren Illinois customers who have discovered the ease of doing business with us using their mobile phone.

Ameren Alerts let you receive important information regarding your account via text or email.

When you sign up for Ameren Alerts, we’ll send you the information you choose to receive, such as:• Reported Outage Updates: After reporting an outage, receive notifications for estimated restoration updates and messages• Paperless Billing: Cut down on paper clutter and receive notification when your bill is available for viewing

SIGN UP FOR DIRECT PAY OR BUDGET BILLINGComplete the information on the back side of this panel and mail or fax this form along with your voided check (if enrolling in direct pay) to:

Ameren IllinoisTreasury Technology Services2105 East State Route 104, PWN1020Pawnee, IL 62558-9908Fax 1.800.521.2371

• Bill Reminders: Receive a notification five business days prior to when your payment is due and if payment is past due• Payment Notice: Receive a notification when a payment has been posted to your account• Credit Issues: Receive notifications when the status of your account changes while there is a past due balance• Energy Assistance Pledge Posted: Receive a notification when an Energy Assistance Pledge has been applied to your account• Connect and Disconnect: Receive an alert when a service connect or disconnect is complete

Depending on the type of meter you have, you may also be able to sign up for:• Weekly Cost Summary: Receive weekly updates that include bill estimates based on your usage• Cost Threshold: Set a cost threshold for your usage and receive a notification when it is exceeded• Usage Threshold: Set a usage threshold for your usage and receive a notification when it is exceeded

You can sign up for and customize Ameren Alerts several ways:• Log on to your online account and selecting “Alerts” in the Billing & Payments section• Visit Ameren.com/Alerts• Text REG to 40401* • Download the Ameren Mobile app, available through the Apple® and Android® app stores

Upon request, you can stop receiving alerts at any time.*Message and data rates may apply

REGISTRATION FORM

Ameren Illinois Account Number

Name(s) (Please print):

BUDGET BILLING PLAN

Yes, I would like to register for Budget Billing to level out my energy bills throughout the year.o Rollover from year to year o Settle up once every 12 months

DIRECT PAY PLAN

o Yes, I want to participate in the Direct Pay Plan.

I hereby authorize Ameren Illinois to debit my checking/savings o on the bill due date o 5 business days before the due date

I understand that Ameren Illinois or I can cancel this agreement at any time. I have enclosed a voided/cancelled check (or savings deposit slip) from the checking/savings account I wish to pay from.

Service Address City

Home Phone

Alternate Phone

E-Mail Address

Signature(s) Date

Mail or fax his form along with your voided check/savings deposit slip to:Ameren IllinoisTreasury Technology Services2105 East State Route 104, PWN1020Pawnee, IL 62558-9908Fax 1.800.521.2371

MANY WAYS TO PAY

CHECK

• free Ameren Mobile app

• online at AmerenIllinois.com

• through Direct Pay

• in person at one of our partner pay-in-person locations

• through Western Union SPEEDPAY at 1.888.777.3108• by mail

AI Rev. 2/18 13075Printed on recycled paper. Please recycle.

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Easy Ways to Manage Your Bill

CREDIT OR DEBIT CARD

• free Ameren Mobile app

• online at AmerenIllinois.com

• through Western Union SPEEDPAY at 1.888.777.3108

CASH

• in person at one of our partner pay-in-person locations

MONEY ORDER

• in person at one of our partner pay-in-person locations

• by mail