Business call centre agent sends incorrect invoice

I called MTN call centre on the number 809 for my November invoice. I spoke to 5 different consultants from 10 Dec to date. All consultants said they will email it, to date nothing. They cannot do a simple thing like sending an invoice via email. When speaking to the controller who assured to call me in 15min , didnt call or email me the invoice. They said it will be sent in 2 hours. And to top it off, the consultant sends me another persons invoice. I can see all his personal information. This type of irresponsibility should be published as ***** can occur in cases like this. <br> <br> WHY is it so difficult for MTN Business call centre to send an email???<br> WHY should I make numerous calls for my invoice. I will put a stop order on my account for payment.