FNB isn’t helping

Everyday I keep hoping that FNB will pull their socks up and help me with the situation but I keep getting let down by them. It’s been three weeks now and I still have my account blocked because I apparently received a ********** payment. They asked me to get a proof of payment from the sender, the account number, my account number, date of transfer, the amount of the transfer and asked me to go down to the police station and make affidavits and certify them. I did all this a day after I received the email late afternoon. It clearly stated to get all the documents through to them within 48hours and I did just that. I asked how long the process would take to unlock my account and they said 2-3 days. I’m still waiting for them to contact me but they haven’t. I’ve got to the branch numerous of times and they can’t help me because they can’t get through my investigator either. It’s been three weeks now and I’m fed up. I’ve tried to be patient with the situation at but that’s not helping anymore. I’m a human I need to do things but it seems FNB isn't taking my matter seriously. I’m fed up and tired.