4 Months and NO resolution

I have not received my monthly Vodacom invoice/account since February 2015. I have been contacting Vodacom monthly to have the issue resolved and to date it has not. People in the Call Centre have promised to resolve the issue and provide feedback. Not really surprised that Vodacom's Call Centre staff (much like all Call Centres) are not willing to take responsibility to resolve the issue.<br> <br> I really can't believe that something as simple as sending out a monthly statement via email can prove to be such an arduous task.