Diagnosis
A repayment request was created and cleared with the payment run. Thispayment now comes back with this return.
Possible Scenario
An incoming payment that could not be assigned was cleared with arepayment request and the amount was transferred back to the payer. Theamount comes back because in the meantime the payer's bank account hasexpired.

Procedure
Post the return from the clarification and reverse the repaymentrequest. Otherwise there is a danger that this will be reopened, enteredduring the next payment run, and returned again by the bank.