Disgusting customer service

I’ve been trying to talk to someone for 7 conservative days. I called their contact centre asking for my account paid up letter and they couldn’t assist, they gave me a number to call and ask for Itumeleng Nhlabathi. When I called that number someone answered and told me Itumeleng will call me back. 3 days later and no call back. I’ve been trying to call the same number but put on hold for more than 8min and eventually hang up.