This. In my previous company I was receiving almost every month some email from automated systems AND humans at AWS because either our finance dept screwed it u

This. In my previous company I was receiving almost every month some email from automated systems AND humans at AWS because either our finance dept screwed it up or AWS screwed it up but we had like hundred of thousands of $ in missing payments for months, and nothing happened (we always eventually paid AFAIK). Nowadays I think they are removing humans from the loop as much as possible though.