Bad customer service

What **** bad experience I received from the customer service line. I made a payment for 2500 to a catering company 24 hours ago; the people are telling me the transaction is not reflecting on thier side. I called Customer service 17 times; talking to different people; being transferred to a ***** line?? ( for what reason only God knows). How can an FNB to FNB payment take more than 24 hours to clear?? I’ve been with a FNB for so many years I know payments clear immediately or the latest Is 2 hours. Now I’m waiting hoping it will clear hopefully before next wee**** I’m so frustrated don’t even know what to do ; which line should I call anymore.. I made this payment via the App by the way..