MTN problems/internal issues affecting customers!

For some reason MTN has not deducted money from my account in September 2015. In October I was double debited which i do not have a problem with. My problem is that after MTN received my money in October they have still not activated one of my cell numbers on my account. I have spoken to MTN on the 02 November 2015 and was promised it would be soted in 24 Hours. Then on the 03 November I spoke to Thabiso Makaepea and he confimed it would be resolved in 24 hours, also confirmed this via email and supp**** me with REF ***. On the 05 November 2015 at +- 07:02am i Spoke to Aurelian Tarr and was promised that she would send me an email with a reference number within 20minutes of the call and i have still not received anything. All the times I called the MTN agents just confirmed its giving an error and will be escalate and resolved in 24 hours. MTN has my money and has still not activated the number and would still debit my account for the full amount even though I never had use of the number due to their problems. Now will I be billed a lesser amount because MTN is having problem activating the sim card which is not my problem but their?