Santander Bank struggled with the failure, customers were charged 100 times more from their account than the actual payment.
Downdetector was flooded with reports from affected customers, in which customers complained about the excessive blocking of funds, for example, instead of PLN 13.37, the amount was PLN 1337.

According to dobreprogramy, there were relatively few reports, but not everyone could immediately notice the current account balance.

The breakdown started before 15:00 and was fixed at 21:40. In the issued statement, the bank informed that incorrect, higher amounts blocked on transactions with payment cards were automatically lifted. The problem concerned less than 1% of transactions executed by the bank on Sunday.