vpc_Amount=600&vpc_BatchNo=0&vpc_Command=refund&vpc_Locale=en&vpc_MerchTxnRef=0CMWuVjNhK4dHXmfnSrs2JqBLotbaz8lQkiOGpx1&vpc_Merchant=9764387015&vpc_Message=Field+vpc_TransNo+value+%5BSD4662750510249%5D+is+too+long.+The+maximum+field+length+is+12+chars.&vpc_TransactionNo=0&vpc_TxnResponseCode=7&vpc_Version=1<pre>Array
(
    [vpc_Amount] => 600
    [vpc_BatchNo] => 0
    [vpc_Command] => refund
    [vpc_Locale] => en
    [vpc_MerchTxnRef] => 0CMWuVjNhK4dHXmfnSrs2JqBLotbaz8lQkiOGpx1
    [vpc_Merchant] => 9764387015
    [vpc_Message] => Field vpc_TransNo value [SD4662750510249] is too long. The maximum field length is 12 chars.
    [vpc_TransactionNo] => 0
    [vpc_TxnResponseCode] => 7
    [vpc_Version] => 1
)