I deleted an old account a couple of years ago, however the account still appears on my iPhone for some reason. I can't remove it, log into it in order to properly log out of it to delete it permanently. When I attempt to fix by clicking on the image box, it just comes up straight away with an error message saying "Sorry, we couldn't log you in." How long does it take to remove old Instagram accounts? I'm hoping this one will be picked up for deletion soon.