I got an email saying i get free access to HBO Max, yet on the ATT portal it states "Start your 30-day free trial with promo code A########4GMH8." Is it free or do i have to pay for it. if I have to pay for it then why is ATT sending misleading emails and here is the verbiage from the email i received: "Great news! HBO Max is now available on Amazon Fire TV and Fire Tablet devices. Now there are even more ways to stream over 10,000 hours of entertainment, all at no additional charge with your wireless plan."