Data not being credited

This is the second complaint from me regarding the same subject. MTN hasn't credited my contracted data for Jan & Feb initially. Eventually after continuous calls and reference upon new reference, I was credited one months worth. I have been phoning (and cut off more times than I care to remember) and receiving yet again reference upon reference, having to wait another 2-3 working days every time. I am sick and tired of the incompetence at MTN. I do not want another \we apologise for the inconvenience\" response from MTN - I WANT SOMEONE TO PHONE ME BACK AND DO SOMETHING ABOUT THIS. I REFUSE TO HOLD ON FOR AGES, ONLY TO BE CUT OFF AGAIN AND REPEAT THE SAME SECURITY QUESTIONS, ONLY TO BE CUT OFF AGAIN!!! HOW PATHETIC CAN YOU BE?"