After you file

I went as far as going to my post office (located  in Colorado) Because usps said I had mail coming Saturday that never came and the mail didn’t have a picture so 🤷🏽‍♀️, but the post office said they have 5 days from the day the website says I have mail coming to deliver my mail🙄 all of this is just ridiculous and I don’t know what to do anymore.