sad to report this cuz its actually kinda fun to exploit:
so the advertising works weird, so if you buy 1 international ad it creates a stack of international ads, but then when you buy local versions of that ad (a lot cheaper) , it doesnt create a new stack, but instead just adds the amount to the stack of international ads for local versions. meaning you can get internationa ads for a lot cheaper than you should. this also works in reverse, so you could get ripped off if you buy international ads but already have a stack of local or national ads running.
(if its already reported and i missed it then my bad :3
