I received a message about an exclusive upgrade offer for $75 off any phone when I upgrade on the tab. Note that I also have a $150 positive tab balance which I should be able to apply when upgrading on the tab. The issue is that these discounts do not appear to be applied consistently. Phones that are available on the tab when I am not logged in (such as the iPhone 5s) disappear completely when I am. Others are suddenly not available on the tab and can only be purchased at full retail price (such at the iPhone SE, see screenshot), and still others appear not to apply the discount (even though it clearly says ANY phone in capital letters). Basically any phone I am actually interested in appears to not be working with the deal.