January 3rd, 2006 | Published in Google Adwords API
Thank you all for your feedback.
We have recently discovered a bug that is causing some developers' API quotas to be miscalculated. Those affected have likely seen an unusual fluctuation in their quota limit over the last few days.
We are working to resolve this bug as quickly as possible. We will update you as we learn more.
We sincerely apologize for this inconvenience.
--Patrick Chanezon, AdWords API evangelist