To help a customer asking for the status of their refund, you can provide the Acquirer Reference Number (ARN) which allows them to work with their bank to trace the refund for all Visa and Mastercard charges. System Trace Audit Numbers (STANs) are sometimes required to track the status of a refund, such as with reversals. Some networks don't support ARN, so you'd provide your customers the Retrieval Reference Number (RRN) if available. You only need one of the above references in order to track your refund.
On your Dashboard on the Transactions page and Payments tab, select a specific transaction and find its Timeline section to locate the reference number. If it's not there, click View details under the refund entry to open the top-up window that displays the reference number.
If the reference number isn't in either of the above locations, you should see a message that the reference number will be available in 1-3 business days.
An ARN is a unique number assigned to a credit card transaction as it moves through the payment flow. It can be used by banks to help trace your refund if it appears to be missing. An ARN will be available only for supported card networks, and marked as unavailable otherwise.
A STAN is a number generated by the cardholder bank that can be used to identify a transaction. STAN is a trace ID number most commonly used internally at the cardholders bank. It’s always a six-digit code, and therefore is not truly unique as the code resets after 999,999.
An RRN is a 12-character identifier to a card transaction based on the ISO 8583 standard. The standard format for an RRN includes the date and hour of the authorization, making it somewhat unique. For some networks that do not support ARN, a RRN will be provided if it is available.
In most cases, we recommend customers use an Acquirer Reference Number (ARN) if available.
Because STANs are six digit codes, they aren't truly unique but are useful when ARNs aren't available in cases such as reversals. Depending on network supportability, sometimes an RRN is provided instead of ARN. An RRN is somewhat unique and often useful to track single message network transactions.
Some local payment methods, like SEPA Direct Debit, offer refund references which can also be found on the Dashboard if available.