Trying to login to my DTV account keeps taking me to myATT

I'm just trying to sign up for autopay.  I click the login to my account on directv.com and it eventually cycles back to myatt.com to sign in - I do but it only shows my wireless and internet accounts.  Literally says if I want to manage my DIRECTV account, i need to go to directv.com.  Even links in my DTV bill (like directv.com/autopay) take me to the AT&T site. Which then tells me to go to the DTV site.