Account Closure with no Refund of available funds

I have been transferring R1500 a month to account ***) since 3 Feb 2020 using my Standard Bank account. The last transfer done on 05 May was returned on 07 May because Nedbank decided to close the account without even bothering to notify the account holder or manager. The payments made on 3 Feb, 28 Feb and 04 April have not been returned to my account or accounted for by Nedbank. The account holder has phoned Nedbank over 10 times and been to the branch 3 times to date to have this sorted out. She was told that all the amounts were returned to my Standard Bank Account and being sent from pillar to post without a resolution. My bank confirmed today after a two weeks investigation that only one amount was returned, as stated above and none of the first three were.

I want the R4500 returned, Nedbank cannot decide to close an account with funds and not inform the holder first. The account holder also logged a complaint (Ref #:***6) with Nedbank but the service she has been receiving is appalling and there's no sense of urgency whatsoever.