Know what a plan change does before you accept it

Change plan and Cancel ask first. The dialog names the new plan and its price, your agreed price when you have one, and says whether something is charged today or the change waits for your renewal date. When the new plan gives you less than you use, it lists each limit in the way and the included add-ons you would lose. Cancelling tells you until when the plan stays active, and Resume plan acts at once.