bekdik
Honorary Master
Unfortunately it is not financially viable for us to allow the positive amount to go over as we work on a breakage and for this to be sustainable we do charge for the extra bandwidth used and not vice versa. Also as stated in many threads we do not get the stats from IS immediately so it is possible to go over. Especially if you have a fast line and concurrent users (we do allow 5).
Other ISPs have a padded margin to allow extra bandwidth to not be deducted off your account, but since our markup is already so low, we can't offer that perk.In essence you are paying them for the extra bandwidth as you are paying us!
Maybe offer your clients the option of being capped at 99.8% usage?