Bad service, client care does not answ their phones or whatsapps

My account with them is S3631. I have requested to place my account on hold almost two months ago. But they still deducted R900 from my account this month. No one on their customer care answers their phones. It keeps saying Whatsapp then for a speedy response. I have sent them a Whatsapp every day, but no one can give me any feedback or call me back. Again when I try calling they do not answ their phones and its says your called nr 6 or nr 7 but for half an hour or longer. They cannot do business like this. How is any client supposed to get hold of them. I will log a complaint everyday until I can speak to a consultant who can just tell me what is happening and give me feedback and assistance!