networkn: It's really hard to not feel that after so many problems Telecom "accidentally" has with it's usage meter, that this isn't intentional. Of course they will come out and say no no, it's completely an accident and give credits etc, but when internet is metered in NZ, then it should be able to be reliably metered. It's a pretty fundamental part of the process. I don't believe personally only 7% of the people were incorrectly counted, and I would like to know exactly what the problem was. I have been involved in helping customers with their usage issues with various ISP's in NZ since the pilot of ADSL, I can't tell you how many times I have proven differences between meters and actual usage and had credits issued.
we have a number of system checks in place and regularly monitor and review all of our systems however the nature of this progressive fault, which developed in a small part of the system over several months, meant that it didn't become immediately apparent.
during those months we only had 8 faults reported.
logging them here is good but it is really important that they are logged with the helpdesk too so that we can see patterns and join similar cases together. this helps our team suss out wider issues.