Regarding Late Payments and autopayments

Today I received an email from xfinity stating that I have a late payment to make for $210.33.

I need to know; How is it possible for me to have a late payment when I'm enrolled in auto payments?

Why can't I see this charge for $210.33 on my account.

My previous 3 charges in billing history were for $120.33, $150.00, and $120.00.

What is this late payment exactly?

This needs to be disputed.

Last year this happened and it ruined my credit score.

I was at 824 credit score, and after I was flagged for a late payment my score dropped to 799.

If my score drops again I'll be filing a lawsuit.

This needs to be fixed immediately.