Nedbank Global can't tell me where my money is!?

22 Jan 2015 a friend from the UK paid R3700 into my account for a friends surprise wedding gift, we waited 6 working days and the money has not been deposited into my account, I then phoned Nedbank Global, I then had to explain my story to 4 people because you get transferred from the one agent to the other... After a hour on the phone they tell me the account number was entered incorrectly, an amendment needs to be made in the UK on the account no. The amendment was made on 3 Feb 2015, I phone Nedbank Global again after been transferred 3 times and hade to explain my story again they tell me the money was send back to the UK but they will stop the process, (after we've already paid the R990 to do the amendment). I phoned again 6 working days later to try and find out whats going on. The lady told me that the money was send back 2 days after the amendment was made... so the R990 that we've paid for the amendment was for nothing and now that money is also now gone... The money is not in my account and not in my friend's account in the UK... so where is it? This process has been going on for more then a month, R4690 later and no one can tell me where the money is!!!!!????