Rank 9 Discount Book does not work.... will it be fixed?
it only work for very certain stats.
Lets say rank 7 let you increase damage bonus from 6 (the inmediate lower rank max db) to 8.
So this badge only will give you a discount for point of db to 7 and to 8.
It won't discount to 9 ( of course ) but also won't discount to 5 or to 6.