Don't give up. Other than groceries, we have almost everything we buy delivered to the house. And sometimes we have several different packages delivered on the same day. Sometimes they all arrive on the same truck but it is not unusual for two or three different UPS trucks to arrive during the day.
Or you can call the seller and make sure your order is supposed to be delivered today. Sometimes the automated notification systems screw up. (That is one reason I am not looking forward to a world that goes completely AI and we no longer have human beings handling things.)