<p>Well, yes they might hold your test if they suspect too much of a point increase, doesn’t mean they’ll accuse you of actual cheating, but scores are sometimes held back from the release of the others. Here is quote from college board on delayed scores:</p>
<p>Scores may be released later for reasons that include a late receipt of answer sheets, missing information on your answer sheet or information that is inconsistent with your registration information, or other uncommon conditions that flag your test for more attention. Also, if you took a make-up test later than the actual test day, your scores will be released later</p>