Oh that's a long wait. I'm from Malaysia, but lucky nowadays the waiting time has been reduced to one month at the most for results. If your exam is say, June 27th, you're in luck, cos the minute it's July, you can go collect your results!
Yes, you might not have done quite so badly for your exam. Last year I made the mistakes you described, most notes out of pitch, hence key mostly wrong, and rhythm also shaky, but I still got a 17.
And yes, like Katet, when I thought I'd failed my piano exam, I still got 107, and when I thought I'd get a distinction, I only got 126 because the examiner said I played the second piece way too fast for "Adagio" even though it was semiquaver triplets throughout the piece and I followed the metroneme mark given (at 92 quavers per minute-which is awfully misleading in this case!) and hence failed me on that piece.