Migration frustration with MTN

I have been with MTN for 17 now, for the past 2 years i am struggling to get assistance from them. They have been migrating their customers to a new system called Ilula and i was not. I kept asking to be migrated as it is hard to get assistance from the consultants because i am on the old system and they cant see my details. Each time i call the call centre, i will be passed from one consultant to the other and eventually after 5-10 consultants i will e asked to send an email to the department that uses the old system. The department does not respond to emails or acknowledge them, i have sent 4 emails to date. I have been trying to change my payment method from cash to debit order as well as bank details and i need to upgrade. When i tried to upgrade instore i was told because i am on the old system the package i want to upgrade to will cost R500 more. Tell me why i am punished for something that is MTN's doing, why do i need to pay more? Then again on my upgrade request i was told MTN does not upgrade packages from the old system. Is MTN basically telling me they don't need me as a customer anymore, if that is the case; i request to be released immediately so i can port my number to another service provider.