Heirloom

@hayhor seems to be on the right track. 

I've personally looked into a lot of these, and the system does appear to be working correctly. If I ever do find evidence of it not working correctly that would of course be a major concern to be highlighted as a priority

There are of course some wild claims from folks who wildly overestimated pack purchases, but also a lot of cases where folks were diligent in tracking purchases and it's a lot less clear why the guarantee wasn't hit.

Key things are spending coins on event packs, direct purchases, and crucially, failed coin purchases. If, for example someone buys multiple packs of coins and one purchase gets rejected, they may reasonably calculate their coin purchases based on their intended purchase amount.

@TopNoobKiller I've sent you a DM with some context on what I can see from my side.