I agree with that. It's disappointing but having someone throw you a couple of points, or even a fraction of a point won't make you any happier because you'll always know.
** Confession Time **
When I was a junior in high school, I took a really hard math class. The teacher had a reputation for being quite the hard nosed SOB and top grades were rare in his class. In any event, we came to a point in the semester where he announced that the next unit we were to cover was incredibly difficult, we would all struggle, and in fact would all do poorly on the test. He admonished us to not feel bad about it, just get through it and we'll move on.
Sure enough, the unit was incredibly tough and filled with all kinds of crazy concepts that I'm sure even Issac Newtom himself scratched his head over. But I worked as hard as a could and actually did ALL of my homework for that unit.
WHen it came time to take the test, I did as best as I could and I left thinking I might have pulled of a stunning upset. A couple of days later we got the test back and I missed an A by ONE POINT.
Reviewing through the test, there was one question that had a long complicated solution to it and the final answer was X = +1. I had written down X = -1. I had done everything correctly, but had just foolishly written down -1 instead of +1. Next to that incorrect answer was a -2 circled in red. (the pointes he had deducted)
I was so mad at myself for such a foolish mistake that I actually took my pencil, made a little slash mark through the - sign, turning it into a + sign and took the paper back up to my teacher and politely pointed out that he had erroneously marked that answer as wrong, when in fact I clearly had the correct answer.
He apologized and gave me the two points.
So in effect, I got an A on test that I DID NOT EARN. In my final grade for the semester, it made no difference. I would have ended up with the same final grade anyways. But I've always felt a small twinge of guilt knowing that I didn't earn that A.
So don't lose any sleep over it. It's disappointing, but going and begging for the points is lame and makes you sound like a whiner. And getting the extra point will not make you feel any better because you'll always know the truth.
There's an old poem called "The Man in the Glass." Look it up.