Autopay question: webpage vs email

I just signed up for Autopay. My Billing page at https://customer.xfinity.com/billing/services says:

• "Autopay scheduled for Sep 28".

But the confirmation email that was sent says:

• "Please note you will need to pay your current bill, as this change will not take effect until your next billing cycle".

Which is correct? Do I risk double-paying the current bill, or risk not having the Autopay go through?

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