Hi @sspa,
Welcome to The Seller Community! Happy to help.
For security we encrypt everything except the last four digits of the card number. This will not stop you from charging the card on file in anyway.
To charge a card on file from the Square app:
Tap Keypad to enter your payment amount (minimum $1.00) or tap Library and choose an item from your Item Library.
Tap Charge > Card on File. Note: If you’re using a mobile device, or your tablet is being used in Portrait mode (vertically), tap Review Sale >
Charge.
Select a customer with a card on file > tap Charge to select a payment card for the transaction.
Complete the payment flow.
If you are using Open Tickets, follow the steps below:
Tap Keypad to enter your payment amount (minimum $1.00) or tap Library and choose an item from your Item Library.
From the top of your Current Sale screen, tap Add a customer.
Select a customer with a card on file.
Tap Charge.
Card on File displays as a new tender type at the bottom of the screen.
Tap Charge next to the card on file that you would like to use for the payment.
Complete the payment flow.
When you charge a card on file, a receipt is automatically sent to the email address associated with your customer’s profile.
I hope that eliminated some confusion!
