MBD REFUSE TO PROVIDE ME WITH A PAID UP LETTER!!!!!!!!

I paid my Truworths account on the 21st of May and I still have not received my paid up letter. I sent proof of payment more than once to a lady named Jane Khumalo...and several times to *** and I still have not been assisted. I've made several phone calls to MBD and the consultant's are not any of help. MBD kindly provide me with a paid up letter. I'm losing my job. How long do I have to wait...what's the point of sending proof of payment if you still going to make me wait. Is it my fault if you have delays in your system? Why must I suffer because of your incompetence. Please I need my paid up letter. I've waited long enough. If non of you can help me please direct me to someone who will.