If the transaction IDs in question are confirmed as RDR (Rapid Dispute Resolution) alerts, under the Visa Prevention Service, they are valid and billable per your current agreement.
More information: Visa Prevention Service
This service processes refunds within the Visa Network before a chargeback is issued, helping to prevent disputes from affecting your chargeback rate.
Since the alerts were:
Properly identified as RDRs
Successfully refunded through the Visa Network
Helped prevent chargebacks as intended
They are billable. If you need further details, please contact billing@chargeflow.io