grimwulf:
Find it a bit hard to believe that there'd be such a massive immediate price rise - strikes me that it probably wasn't properly licensed to begin with and perhaps this reflects some claw back of that;
I use a saas ecommerce system that had a large price rise for high use users, several years ago, when they changed the way they billed for it. So it is possible something similar has happened, and maybe it is based on the number of queries it does?