put https://www.bankingcircleconnect.com/api/v1/payments/singles//reject
Reject or initiate a refund for Direct Debit payments from your account
This endpoint allows you to initiate reject a Direct Debit payment from one of your accounts or, if the payment has already been processed, initiate a refund.
Some conditions apply which are described in the Direct Debit payments (3rd party-initiated payments) guide.