Hello.
A few weeks ago we received a new Clover Flex 2 device with a Test Card. The problem we are having is that the test card (6011 3610 000 6668) is not working - we are getting a "Transaction failed - invalid card" message.
We are testing on the sandbox environment with a test merchant (merchatID: QV8CYV91KV9X4).
Any ideas what could be wrong here?