Apparently there's a glitch/bug that 80 dollars vaults (with 20% discount) is only counted as 60 dollars against the different tiers. 1000/2000 dollars tiers and so on.
People who then think they have reached 2000 dollars are suddenly 400 dollars off this target.
Don't know if they can easily fix this or if they have to go through everyones account after sending tickets in.