Uni offers with one A-level completed in Y12

I am currently doing History, Politics and Criminology in school and Russian outside. I am taking my Russian A-level this summer. I am seriously considering dropping Criminology as firstly we have had two different teachers who were completely lost and it is not a proper A-level (it's a level 3 diploma, A-level equivalent, basically another name for BTEC). I regret choosing it but my sixth form talked me into doing it, I do not need it for the things I plan to do in the future as well.
I am planning to get A/A* in Russian but how would university offers work if I already have 1 A level from Year 12, and would they care if I already had one and not did all 3 in Year 13? I don't know if this matters but I am probably going to apply mostly to mid tier unis.

I am currently doing History, Politics and Criminology in school and Russian outside. I am taking my Russian A-level this summer. I am seriously considering dropping Criminology as firstly we have had two different teachers who were completely lost and it is not a proper A-level (it's a level 3 diploma, A-level equivalent, basically another name for BTEC). I regret choosing it but my sixth form talked me into doing it, I do not need it for the things I plan to do in the future as well.
I am planning to get A/A* in Russian but how would university offers work if I already have 1 A level from Year 12, and would they care if I already had one and not did all 3 in Year 13? I don't know if this matters but I am probably going to apply mostly to mid tier unis.