Immediate payment not cleared

On 09 March 2020 at 9am a payment from Capitec Bank was made into my Standard Bank account. This was made as an immediate payment. After numerous calls to both Capitec and Standard Bank no one could advise why the funds has not cleared into my account. Capitec confirmed the funds was released on their side and no problem exists on their side. Standard Bank has been of no help, advising I should just wait for the funds to clear. Absolutely shocking. It is now 10 March 2020 at 11:33am and the funds are still not available. I urgently need someone to look into this matter as the funds are required as a matter of urgency.