First National Bank is pathetic and Useless!

I am a 36years old Cameroonian national and I have been living and working legally in South Africa for the past 5years. I opened a Cheque account with FNB back in 2017 and I have never had any problems with the bank up until last month.

Money was transferred into my personal account and when I tried to transfer the money I was unable to do so. However I was able to send eWallets and buy airtime but unable to transfer into anyones's personal account. I called the bank and they told me that my account was frozen and I was never given a reason why it was frozen, I was only given a number of one lady to call. I couldn't get hold of that lady so a few days later I went to my nearest branch to enquire what was going on.

I was told that someone had used my account number under a different name to commit ********** activities however the activities never happened, it was only that someone used my account number with a different name. I explained to them that I was unaware and I didn't know what was going on because I was the sole owner of that account. They told me that an investigation was being launched and I should give them 10-15 working days which is what I did. Today, I went back to the bank and I was told that they have concluded the investigation and someone was using my account number and that they will be closing down my account and I will never be able to open a bank account with them ever again. I tried to find out what was the real problem and they were giving me the runaround and couldn't get a real reason or even the findings of that investigation.

I feel like FNB is taking advantage of me and I would like an answer from them!