So i'm getting this response for a transaction made some days ago

[transaction] => SimpleXMLElement Object
                (
                    [transId] => xxxxxxxxx
                    [submitTimeUTC] => 2015-04-03T09:41:12.7Z
                    [submitTimeLocal] => 2015-04-03T02:41:12.7
                    [transactionType] => authCaptureTransaction
                    [transactionStatus] => generalError
                    [responseCode] => 2
                    [responseReasonCode] => 200
                    [subscription] => SimpleXMLElement Object
                        (
                            [id] => 23896533
                            [payNum] => 1
                        )

                    [responseReasonDescription] => Request rejected by FDC omaha - Invalid Card number
                    [AVSResponse] => P
                    [batch] => SimpleXMLElement Object
                        (
                            [batchId] => 315971388
                            [settlementTimeUTC] => 2015-04-04T04:22:29.413Z
                            [settlementTimeLocal] => 2015-04-03T21:22:29.413
                            [settlementState] => settledSuccessfully
                        )

                    [authAmount] => 249.00
                    [settleAmount] => 249.00
                    [taxExempt] => false
                    [payment] => SimpleXMLElement Object
                        (
                            [creditCard] => SimpleXMLElement Object
                                (
                                    [cardNumber] => xxxxxxxx
                                    [expirationDate] => XXXX
                                    [cardType] => xxxx
                                )

                        )

 I've never seen this error before and I have a few questions, the batch says thay the settlement state is succesfully but I don't know if the payment is corretly settled, also, what does FDC omaha invalid card number means? why doesnt authorize tell me that the card number is invalid? Thanks in advance