Cup question

Hi guys,

I have a question. I had these games in the cup. First one was at me and I lost with 2-0, at the opponent's home I won with 3-2. How come I didn't qualify?

3-2 + 0-2 = 3-4 for him ;)

what about the away goal rule?? the number of points was equal but i had more away goals

in cup not exist points, only a total of both results.

I see, thank you.