Incorrect payment to be refunded

I have had the worst experience ever with RCS. Money was incorrectly paid into RCS account on the 8 June 2022 and the 17 June 2022 respectively. Totalling an amount of R106300.00, which up to date has still not refunded to me. Initially i was told the money will be refunded 7 to 14 days after documentation has been received. I sent throught the documentation through to them on 4 July 2022 and alas money has still not been refunded. I dealt with Carl, Shaylin, Jabulile, Leshayne and of course Papama. All of which promised to escalate the matter. You can call in to all the numbers they provide yuo and no one is able to assist you. Apparently the refunds (Accounts) department has no phone numbers. Is it possible for a competent person to contact me to finalise this refund please. Valdelia