I got an AAB offer as well. It's crazy, I wasn't expecting an offer, let alone a reduced offer! I'm guessing I did well in the LNAT cause my academics aren't that great.
GCSEs: A*A*A*AAAAABB (+ an A in English Lit AS)
I'd rather not say my AS grades but let's just say they were not good. I screwed up x)
Predicted: AAA