*********** MTN Account's department -And everyone involved at MTN

I have two cellphone contract with MTN. I pay them via EFT every month using the reference number they provide via SMS. I also forward Proof of payments to ***. According to MTN I had an outstanding amount of over R 7000-00 to my account. After sending a year's proof of payments, dates, reference numbers and amounts and waiting a full 20 days with no feedback. I even resent the Proof pf payments originally sent in. They are saying the money does not reflect in their account and I need to resend the Proof of payments ( is this not what i just did?) I want to cancel my one contract but due to their complete incompetence of allocating payments using the reference number they provided me i am unable to resolve this as every email i send they come back requesting the same information i have already sent in numerous times. It took them 3 weeks to send my statements to me (which i am not sure is my statements because the personal information on them is not to do with me and there is not indication of any of my two cellphone numbers on them) and i have yet to receive my contract. I am appalled and disgusted that i have to resend information every time. I have even sent all this to the complaints department who have yet to get back to me. This has been going on since October. I am not any closer to resolving this. How can such a large company be so ***********? Resulting in grief and emotional and financial stress for ME because they are unable to do their occupation sufficiently? I refuse to pay another cent until my account has been brought up to date with payments already made. I Want to know where is 12 months worth of payments made? who has those funds been allocated to? And why has it not been allocated to my account? I need answers and I need this to be resolved it really is causing me massive stress. `