If you do an access programme in a uni (beware as not all have them) sometimes grades are reduced from the required AAA to AAB or even ABB.
You can only get an unconditional offer IF you’ve already completed your alevels that consist of biology, chemistry and something else and got your grades that are decent so AAA or say AAB due to an access programme.
And you only get the offer if you’ve passed the selection part for the interview and passed the interview.
Access programmes are only for the one in your city and not all of the universities have them.
I just wanted you to be aware of the access programme.