I want to close my account

I reached out to Discovery Bank many months ago to address the selfie isue, but I have got no further. So now I want to close my Discovery Bank account, but what do I need? A selfie. So I would like to know: Isn't there a way they can just close my account? They also didn't want to change the payment of my medical aid; they force me to do it through them. So I am done with this! All they did, was saying sorry they take so long and that was nearly 3 months ago.