The 'Apply refund' button opens the refund way which you can use to input refund amount, associate a refund Id and add a description. If the amount field remains empty, then the total original payment amount will be set.
Automatic Refunds
In order to automatically issue a refund, the payment needs to be enabled for a refund. This feature depends on each country and payment method's capabilities.
Automatic refunds enable you to make refunds without entering the user's bank details.
Manual Refunds
If a transaction can’t be directly refunded you have the option to request a refund manually.
To process a refund you must provide the required fields in the beneficiary’s bank details and personal details forms so that we may process the refund.