Harassment calls from African Bank

For over a year now, I have been telling African Bank that the man they looking for, I am not him, sekgalelo or sekgaolelo, asking them nicely to remove my name and number from their system. But nooo they keep harassing me, and mind you I have never done any business with them. I even went as far as using true caller to block their number but hey they don't stop, it's like motivation for them to try harder. I've had this number for over almost 3 yrs now..

So African Bank, if you don't stop calling me, I will now take legal action against you, trust me I'm so fed up beyond words a now.. Don't even call to apologize, because that's all I've been hearing from your consultants anno2 it's redundant. STOP CALLING ME STOP HARRASSING ME PLEASE