Refunding using merchant profiles means that you can select a prior card owned by the patron on the payment window based on the last 4 digits. The payment window will appear to show a masked credit card number.
Then submitting the refund for authorization, your merchant provider subjects you to the same rules depending on whether you can do:
You can do mass refunds of tickets using merchant profiles. TM will attempt to use the merchant profile and apply an independent refund. Linked refunds are currently not supported for mass refund of tickets.
We recommend doing the refunds first, then authorizing during end of day. This gives you more control over the authorization process. Typical issues that can arise are: