no reponse after a week of phoning and emailing

I have been phoning and sending emails to MTN's legal department everyday for a week just for an email indicating my account is up to date, but up until today I haven't received any response. every time I spoke to a consultant they all said the same thing, that they will send me the email. all I want and need is an email stating my account is up to date. when I phoned they said its up to date and the legal status has been removed, but they never send the proof which is all I need. I didn't want to resort to posting on this site but I had no choice as I have posted a complaint on MTN's site but still no response. this is really delaying my future plans. I even have the proof of payments but I need that letter the proof of payment alone is not enough. <br> <br> I really need some assistance please