Normally, your account is simply updated when changes are made to your services, but on rare occasions changing your products or services will change your bill date, which then changes your AutoPay date.
For credit or debit cards, you can expect to see your AutoPay charge 18 days after your bill date.
For bank accounts, you can expect to have your CenturyLink payment electronically deducted from your designated checking, savings or money market account 14 days after your bill date.
Please note: The "bill date" is not the due date for your bill, but the date it was issued. You can find this date at the top of the bill.
Understanding how AutoPay works
How to change your AutoPay payment information
Does canceling your service stop AutoPay too?
How changing your CenturyLink service impacts AutoPay
How to know if AutoPay has started
Removing AutoPay from your account
Making additional payments when you’re signed up for AutoPay