EXTREMELY BAD SERVICE AND LACK OF ASSISTANCE

I settled my account with MBD over a week ago and when I made the payment, I opted for the faster payment option so that the funds could reflect immediately. When I called them for a paid up letter, they informed me that I needed to email them the proof of payment. I did that immediately. It has been now over a week and I have not received the letter from them. When I call their customer care line, the phone rings with no response or someone will pick up and then hang up or even worse, if someone does answer, they will promise to give Ntabeleng the message and no one will ever get back to you. I have sent countless emails to Ntebaleng Kwenaite and she does not even bother acknowledging the emails. What is sad is the fact that when they are sending threatening emails and messages, they have all the time in the world, but when you want to do things right on your side, no one is willing to assist. I have no idea who I can speak to, this has been the most frustrating period ever! Please can someone help!