Pathetic service from MTN Customer Care

I have been with MTN for more than 15years and have started to see the company going backwards. They have now got this telemarketing company Mondo MTN selling contracts on their behalf. I upgraded 2 of my contracts on the 2 December and I am still waiting for the contracts to get activated. I have over 20 reference no from MTN Customer Care regarding this matter. Spoke to 2 Supervisors who promised to call me back, days have gone by and no call back. When you ask to speak to someone more senior, you told that it’s against protocol. So yah, 15 days later and still waiting for what I was told was a 48hr activation period