Is there an exact figure for how many you get per place? Or is it (kind of) random?
It depends on how well you perform. The higher your score the bigger the reward.
How do i get a battle fund? does it go to me or the reward at the end of the match???
Hey, Crystals from the Battle fund are provided to you according to your performance at the end of every battle, except for "Parkour" mode battles, where the "Battle fund" does not exist.
can we complete mission by doing pro battles
Nope, they changed the ability to do this years ago. Too many people were just easily doing their missions in Pro Battles by getting their friends to sabotage and let them complete their missions that they disabled it. It is almost guaranteed that the ability to do missions in Pro Battles will not return in the future.
Customer support service by UserEcho