Lost payment - Standard Bank

My husband transferred a payment from his standard bank current account through internet banking of R108 000 on the 17 October 2022, there is no sign of that payment and neither his private banker nor the standard bank line can do anything other than tell him to phone the std bank foreign exchange help desk to resolve it. We are currently out of the country on an extended trip and have tried to phone this help; line three times already. Each time we wait over an hour in the phone queue and are no closer to getting through at a cost of thousands of rands in cell phone roaming fees. This payment is now over a month old, and I have given up and run out of ideas as to how to get this matter resolved.