Data sim not working...3 weeks!!! Not a single person answering at customer care..every..single...day! Pathetic!

I've upgraded 2 of my contracts three weeks ago, one which I changed to a data sim. Lady at MTN N1city told me the sim would be activated and ready for use within 2-24 hours. It has been 3 weeks already!!! And you expect me to pay for almost a month's data lost because of incompetence? I have been phoning customer services, 135, everyday and always hold on for almost an hour, giving up with nobody ever answering. Have once been answered and the lady just said she will put me through to customer services..yet I have been holding on for how long already to speak to an agent. Also submitted several online forms, received several reference numbers...still no one is getting back. If I could, I would rate MTN 0 stars..very very poor service