If you refer to the Climber 1 badge, then you need to ascent more than 500ft and less than 1000ft. Your total ascent was over 500m, it means more than 1500ft - that would qualify you for the Climber 2, but you probably already had it.
I had to stop the activity as I passed the specs for each badge. And you can't go so far over the limit of a lower badge that you are into the range of the next level badge.