I don't think that there is a time limit on them going back to look at the results again. But if you haven't heard by now, you probably won't.
I knew a guy who failed 150 and retook. The week before results were due out, he got a good new/bad news phone call. Good news, they had revisited the results from the prior May because someone had shown one of the questions to be defective - and it turned out that throwing this question out gave him a passing score. Bad news, he wasted a sitting retaking the exam.
I suppose that if you think a question should have been declared defective, you can protest and have them revisit your paper to see if it would have made a difference.