frustrating poor service

Good day

I have been struggling to get assistance for 3weeks now , i am trying to get find out if i can migrate my one contract and what the costs would be and what packages are available , i have called the call center many times and get sent from person to person department to department and still no help , i even went in to the MTN store at Jacqueline mall and was told they are off line and would call me back and im still waiting for someone to call me back , i have been with mtn for the past 20 odd years and have never had such poor service