Who will go through?

How it's counting? 2-0, 2-4?
Attachment 6971

where was the 4-2 game played at?

YOU

you have 2 away goals

1st game : Kristina (home) 0 - 2 Canstatt (away)
2nd game : Canstatt (home) 2 - 4 Kristina (away)

= Kristina won.

Thanks for help :) Now I understand how to count it