Ahh, yes, the good old "here, you purchased X amount of things for $Z. But don't dare to use everything you paid for, or we double the price"
> Until this change, customers who have used fewer resources have covered the costs [...] for other customers who have used much more resources.
This does sound to me like "here, all 20TB is yours, but make sure you don't use more than 2TB, or else" - regardless from which angle I look at it.It's a classic web host reseller technique of overselling and having it backfire.