Hey @flyleaf 

Yes you can!

There are a few ways to do it.

Fix it Option:

1. Refund the original transaction, and re-ring it up using the gift card.

Balance Clearning Options:
1. POS - On your POS you can click on Gift Cards, then Swipe the Card to Check Balance, and then you can Clear Balance.

2. Web Dashboard - On your Web Dashboard (www.squareup.com/dashboard), you can go into Gift Cards (https://squareup.com/dashboard/gift-cards), find that gift card, and then click Clear Balance.

Both of these will only clear the balance, and will not refund the customer.

Let me know if this sorts things out!
Pesso