How do I cancel the last transaction on the PAX A920?
Select the menu icon, select 'Cancel' from the menu, and enter your merchant password. You will need the means of payment with which the original payment was made to process the cancellation. (Page 5)
From the official Wallee PAX A920 Mobile Payment Terminal manual, page 5
Have a follow-up question?
Answers from the official manual.
Common questions