So im 25+ and wanting to go back into uni, i really wanted to go back and go uni and study compsci, because i never went, so decided to do an Access Course. I will be completing my access course sometime this summer and got rejected 3/5 universities. The uni i really want to go to has a super competitive foundation year so im most likely going to get rejected from there as ive not heard back anything from them. Out of the other 4 uni left i only got one offer from a university that i really don't want to go to. The 3 rejections i got basically said my course didnt have enough maths modules.
Im wondering now should i take an extra year and sit A level maths privately and apply for university again but with A level maths this time and hopefully my application is a little bit stronger next year. Due to personal reasons i really want to get into a uni preferably in London or close enough to london.
Wanted some advice from previous access to HE applications and if doing an extra A level has help them when applying to stem courses.