Its not the end of the world
I have poor A-Levels and none of the grades i have are in maths or sciences. Im currently doing a Degree however which i hope to get a 2:1 which is meant to compensate for this.
If you were allowed on the Maths A-Level course, youmust be capabel of achieving a resonable degreee, if they dont let you back on, opportunities of Maths foundations or Night Schools do exist!! Kepp trying. I wish i could redo my A-Levels.