Nonsense

I just dont know if Nedbank is assisting me or they assisting themselves. I have requested my refund for more than two weeks now, all I received tonight is R360.05 instead of R1000. I send them a bank statement for this and it was confirmed I was overcharged. I need the balance as soon as possible plus the bank charges otherwise I will go reverse April debit order on the 25th. I am sick and tired of this nonsense