Can a Verification of Payee (VOP) check stop a payment from being processed?

No. If a VOP check is not possible or identifies a difference between the name provided and that of the actual account holder, you (the payer) must decide whether to proceed with the payment. We advise that you check the name and IBAN with the payee before continuing with the payment to ensure that the payment is genuine and to avoid paying into the wrong account.