After getting the auto-renewal email I was wondering how much you'll gonna charge me and it took me a bit of time to figure it out.
It would be so nice if that information was included in the email. I could go "yes, that's ok!" or "wow, why is it so much?" but at least it would save me time if I'm ok with it.
The way I think of this email: It is like you're sending me my bill, with the option to cancel if there is a reason to do so. Why make me jump through hoops?