Hello Arcane Legends!

I got a few questions for the Arcane elites
I bought the arcane champ bundle on lvl 8, with the 10 slots for the AH and 50 inv slots.
If i buy that bundle again would i get 21AH slots and 100 inventory slots in total?

And the reroll elixer, do u use it when u start or when u get a drop from a boss?