Deciding to resit. But what is my FINAL score?

I'm planning to resit for Computer Science in the oct/nov 2016 series. Deadline for resits application is 21 Sep 2016. My problem is that I am not sure what is my FINAL score for C.Sci., in order to decide whether to resit or not. The certificate will be despatched around 8 weeks later (mid-Oct), but I can't wait that long to confirm my FINAL score.

I've just received my A level results (from June 2016 sitting) on 11 Aug online - AAAB (B for Computer Sci) . Can I confirm whether what I've received online, is it my A2 results(June2016 sitting) only? Or is it the combination of my AS(sat in June2015) and A2(sat in June2016)?

If
1) the online marks(11aug2016) reflect the combination of AS(paper sat in June2015) and A2(June2016)
Then: I shall retake. Since I'm not satisfied with a B for Comp Sci. overall.
If
2) the online marks reflect ONLY the A2 paper sat in June2016
Then: How can I know my FINAL score before the cert is despatched (in mid-oct). So i cant confirm my (resit) decision by the resit application deadline-21 Sep2016.

It will probably be your overall grade for AS andA2