...
Press Menu once
Select ‘Refund’ (F2)
Enter your Supervisor Code
Enter the refund amount and press ‘Enter’
Ask the customer to insert their card
Once the transaction is approved/refund accepted, the terminal will print your the merchant copy, which the customer must sign
Verify the customer’s signature and retain your copy
...
To print a duplicate of the last transaction processed press three Menu times, then select 'DUPLICATE' and press enter