I don't think that under normal circumstances you can begin in the September 2021 cycle at all if you've not completed your A levels by the start of uni. I believe there is a Jan 2022 cycle that may fit your needs, but November may be too late for that as well. The best source for this is the particular university, not TSR, since this may vary from uni to uni. also, if the uni is more accommodating, and if you choose a course that isn't already oversubscribed, they may accept you if you have a lower score. you could also attempt clearing this year, and skip the November series.