Blah Blah Blah everyone says you're whining. Blah Blah Blah. Here's what you need to do. Go to your prof and ask what happened to your grade. Explain that you were out of the country so you couldn't talk to him earlier. Don't demand a change or go in with an attitude or you'll get turned down instantly. Depending on your dept and professor, they'll work with you and get things sorted out without too much trouble.