$self->txn_date($response->{TransactionDate}); # MMDDhhmmss
$self->txn_amount($response->{TransactionAmount} / 100); # 00000003500 / 100
$self->reference_number($response->{ReferenceNumber});
$self->txn_date($response->{TransactionDate}); # MMDDhhmmss
$self->txn_amount($response->{TransactionAmount} / 100); # 00000003500 / 100
$self->reference_number($response->{ReferenceNumber});