Hi @andrei. Sorry to hear about this. Sometimes if an institution is being impacted by an outage you will see data quality issues such as duplicates, I believe that’s the case here. Keep an eye on the outages alerts dashboard to monitor the status of affected institutions.
I also suggest reviewing this guide on duplicate transactions. If the issue persists or none of the suggestions work for you do contact support via the blue chat widget in the lower right corner of your Console at https://my.tillerhq.com .