FNB DOESNT CARE ABOUT CUSTOMERS. THEY BLOCKED MY ACCOUNT FOR NO REASON AND THEY DONT CARE TO FIX IT

FNB blocked my account (***, acc Name; Silindile Penny Mhlongo) for no reason. I have been going to their branch almost every day to find out and fix my account but i have received no help and no one seems to care. They just keep giving me the telephone but no promise of resolving the issue. When i asked the person who last paid me the money into my account that he was owing me, he said his account (***, acc Name; T/A ASL LOGISTICS ) was also frozen but it was later released and he is currently using it, he told me that someone had complained about another account (***, acc Name; Mint Logistics and movers) he had also received some money from but the issue was resolved and the account was released. Then he sent me the case number (***). So what i don't understand is , why is my account still frozen yet am not connected to the case and the case was even resolved? They keep telling me that they are still investigating, but what are they still investigating yet both other accounts were released and are currently operating and also the complaint was resolved. There is my money and other people's money still on the account and the people i owe really want their money. iam losing trust in this bank now