Transfer did not clear and not put back into my account

I made a instant payment from my Capitec account to another account of mine on Monday (15 May 2023) The funds did not clear due to an error on your side. Since then, the amount has disappeared off my Discovery statement. Discovery said they have sent the funds back to you, yet this amount still has not been put back into my account. I called your customer service, after being told it was being escalated, I was kept on hold for over 20 minutes with no response. I now need this to be dealt with as I need that money back. If I do not get a response, I will then have to open a case of ***** with SAPS.