However the way you handle this is that you don't bill for flows whose accounting records you have lost, so you always err in favor of your customer. This gives you the right incentive to dimension your accounting infrastructure so that loss is minimized. As long as the loss rate is in the ballpark you showed, the lost revenue probably doesn't justify the effort (VIP upgrades) to fix this.
Simon.
That is nonsense. If Burger King couldn't bill an average of 3% of their customers due to billing error, they'd raise their prices 3%. The net amount paid by their customers would still be the same and their total revenue would still be the same. They'd still be just as competitive. They'd just be billing based upon, you guessed it, statistical sampling. If you pay for it, you have to bill for it, somehow. DS