Misinformation by standard bank to customers and have no level of intergrity this has major small business

Had transferred money from Standard bank app on my business account to my other fnb account and I selected immediate clearance 20 hours have elapsed and the money is not showing on my fnb account. Standard bank informs me that the immediate clearance button does not work after 19:00 and therefore it does not show on their side that the option was selected. Now I am told to wait another 2 days before it can clear. But why are they making that button available if they know it does not work, why mislead the customers. This is pathetic at best and they take no responsibility for misinforming the clients. Lack of customer care