The transfer key just submitted does not belong to any transfer that is currently
in progress. Reasons for this error include:

• Multiple transfer keys were sent to you, and the most recent transfer key
  was not used
  


• The transfer key has already been used to approve or deny the transfer


• The transfer key is over 5 days old and has expired
  
  
  
  Note: If there was no response to the request in 5 days, the transfer
  submitted by the Gaining Registrar is honored by the Registry and the domain
  is automatically transferred to them. The Gaining Registrar is identified
  in the transfer confirmation email where you obtained the key, and can be
  contacted for information relating to the request they submitted for your
  domain.