Here are several reasons that cause the transactions failed.

• Wrong transfer amount.

• Different sender name (the payment didn’t match with the sender's bank account).

• Wrong recipient details (this includes incorrect bank, name didn't match with the registered name on banks, incorrect address, incorrect phone number, wrong bank branch code, etc).

• Transaction expired after payment has been made (the transaction is expired due to the sender forget to click "I Have Paid" button).
  

• Payment rejected by our Compliance team.

If your transaction failed, sure you can request for a refund. See how to make refund request here.