Hello, I'm working in Sandbox environment.
Our Clover terminal has not accepted credit card for refund since this morning, even through the app of "Refund (DEV)"(Remboursement (DEV)).Each time I use for a refund, the terminal says this:
"Transaction refusée : Could not push credit to card SERV NOT ALLOWED Card type cannot be processed on your merchant processing account. Ask for another form of payment. Contact support if you believe this to be incorrect"
I have tried with Mastercard, Visa and Discover and none of them didn't work to complete refund. Other than that, Sale transaction works with the Mastercard and the Visa through both our semi-integrated Android app and Sale(DEV) app as usual. Void works fine through our Android app as well. I rebooted the terminal once, but refund still keeps on failing with the credit cards.
I also went to check the Payments setting on the dashboard and it looks fine.
Is there anything I can do to solve this problem?
Thank you in advance for your help,