Dear colleagues, We have fixed a bug in the RIPE Atlas scheduler which caused extra probes to be added to some ongoing measurements. This bug affected many users who submitted "removal" requests using the REST API from 2021-03-23, and in some cases caused a large increase in the consumption of credits due to the extra generated measurement results. This bug has now been fixed, and the affected accounts have been credited with approximately 125% of the erroneous overpayment. My apologies for any inconvenience caused. Please let me know if you have any further questions or issues. Kind regards, Chris Amin RIPE NCC