Customer money withheld without legal right or proper explanation

I have received payments from SARS for money owed to me, payed in to my bank account at FNB. FNB conveniently decided that I am not allowed to have access to the money owed to me by SARS and payed to me by SARS. You can only speak to someone at the call centre who is more *********** than a police officer in South Africa. I am being told that SARS need to confirm to FNB that the transaction is not **********. FNB has to send a request to SARS within 48 hours of the funds being payed in to my account...which they do not do. They cannot explain why they do not do their job. They are the only bank in SA that place a hold on a their customers money without their customers authorisation or authorisation from a court and refuse to assist to get the funds released. My accountant has spoken to SARS and was informed that FNB is the only bank in SA that does this **** to their customers and SARS also confirmed that FNB has not send them any document or enquiry regarding the funds that has been payed in to my account. This idiot bank system is costing FNB customers and the idiots behind the phone calls that have no idea what they doing and just aggravating FNB's customers should go learn before trying to do a job where they work with customers and need to learn how to assist customers. I am not gonna go in to detail about the FNB Fourways branch that is closed until after lock down, not gonna go in to detail about FNB call centre that dropped 5 calls on me because they cannot give me answers on their pathetic systems. Not gonna go in to detail about a customers not allowed to phone a FNB branch directly and habve to go through call centre and they drop the calls when transferring to a branch. It does not surprise me that FNB has been rated as worst bank in SA for 2019 and the way they going now they gonna take that prize again in 2020. They the only bank that has not improved on amount of complaints received from customers year on year. All other major banks have shown an improvement and receiving less complaints. Guess who does not give a damn about their customers