MFC terrible with debit orders and refunds

A debit order went of on 23 May of R2957. The same debit order went off again on 30 May for R2957, even though I was not in arrears. So on the statement from MFC, it shows that they refunded the R2957 on the 31st. BUT WHERE IS MY MONEY??? I did not receive my refund back in my bank account.