Pay-by-text Setup
Pay by Text Instructions
 
Pay by text is almost automatic. It takes only seconds to make a payment. Here's instructions for setting it up:

Choose paperless bill delivery
Go to My Profile and select Personal Info
Add phone number (text confirmation is required)
Opt-in to receive text messages

Go to the Wallet tab in the top ribbon 
Add bank account information

To pay by text, you will need to set up bill reminders.
On the line for "Bill and Payment Reminder Before Due Date," select the text button
Click on the "Configure" link ( 

Now click on the "Text" tab
Choose the number of days in advance you want to be reminded the payment is due
Check the box to include "Payment-from-card"
Select the  payment account you want to use from the drop-down field