Card error would not let me use Apple Cash

Help me please I went into the gas station to use my Apple card as soon as I put my phone up to the cash register missing it said card error it would not let me use Apple Cash then I try to transfer the money into my savings but it transferred into my checking‘s that was literally the only money I have I need to cancel the transaction because it’s still pending so I can release back onto my Apple Pay

[Re-Titled by Moderator]