MTN Making Customer Service Null and Void - Contract to Prepaid

I have two MTN Sky packages with one due for an upgrade. I wanted to port the one due for an upgrade to prepaid. I have been redirected/misdirected from the store to customer service to emails to the app each stating a different course to take. When finally receiving some feedback, no action was taken and no reply on any correspondence. MTN has made it impossible for me to port to prepaid through unprofessional service, undedicated staff and pure ignorance.