New **** at MTN?

I am writing this on behalf of my wife. She has been an MTN customer for many years with no problems, but the past two months people claiming to be from the accounts and legal departments have phoned her claiming that her account is in arrears and that she has to make a payment immediately otherwise they are going to 'take action' against her.<br> <br> Her account is NOT in arrears as phone calls to the MTN Customer Care line confirms. What is worrying though that if this IS a ****, they have access to her account as the 'amounts outstanding' are the same as the payments she has just made or is due to make the following month. The calls also seem to originate from the MTN call Centre itself, but when we call back the names nor the back story we were told of a strike can be confirmed. <br> <br> We have a name of the person who called but cannot be sure if this is real at all... We have now been holding on for 21 minutes with customer care who have just informed us to make a case with the police!<br> <br> What's going on MTN?