The whistleblower’s complaint referred to a “word-for-word transcript” of the July 25 call. Because we know that, despite Trump’s claim, the transcript the White House released was not word-for-word, and because the three ellipses in the transcript that was released appear in contexts where Trump might have said something (more) damning, the complaint has given rise to speculation that a word-for-word transcript was created during the call and might still exist somewhere.
Or, it is possible that the whistleblower mistakenly thought a word-for-word transcript was being made but it wasn’t, and the one that the White House released is all there is.