ABSA To refund my money

On August 4 i deposited money into a ********** account without my knowledge - on the 7th August we discovered that the money was deposited into the wrong account so we contacted ABSA's ********** department and was told the money was not reflecting on this account, we asked them to block the account - Money deposited was R7800 which they said they had done. When going through the requirements with Nedbank which is my bank they came back saying that ABSA said the money was taken out the account and there was no money left to refund my claim. What I am trying to establish from ABSA is when the money reflected into the ABSA account and when it was withdrawn and they are refusing to give me this info. This will determine if ABSA did block the account or not when we asked them to. If not, then ABSA need to refund me my R7800 back as it was a fault on their side. I emailed Olga Makamu several times with no response, then after many emails and calls to the ABSA ***** division a gentleman name Pyrese Sander was kind enough to send her a note and then she responded back saying she is not allowed to give me the investigators name. The investigator has given feedback to Nedbank. When asking nedbank for the info of when money was reflecting and when withdrawn they are refusing to give this info to me. I need this info so that I can get an understanding as to how the money went through when it did not reflect on the ABSA account and it was supposed to have been blocked. I feel that ABSA are not taking responsibility for this and I want my money back.

Many thanks