Capitec business payment delays

It's month-end, and I was supposed to receive payment via immediate transfer from a company last Thursday at 15:25, along with proof of payment. However, the payment has not reflected in my account. On Friday afternoon, I contacted Capitec Business Banking for assistance, but they simply stated they would email the proof of payment to the back office, and no action was taken. When I visited them this Monday morning, I received the same response from the staff at the Capitec Business Building: they assured me they would email the proof of payment to the back office urgently, but were unable to offer any further assistance. As a result, two debit orders have already bounced, and I urgently need to pay my employees. This situation is extremely frustrating.