Endless spamming

African bank is constantly spamming me with unsolicited calls. I have never had an account with them, nor will I even remotely consider any of their services because of this. I have made multiple attempts to ask them to stop. Every time I get another call asking me why I do not want their services and if I would consider this or that.

African bank seems desperate for new business and when there is no option to opt out, or they do not adhere to it, this goes against the law. If they are willing to break one law, how many others would they break?

ps. to African bank No you wont get a hold of me, I blocked all your numbers. And I do not want to talk to you. Just stop contacting me!