Failed Upgrade Cancellation - 15 months later!

I cancelled my upgrade with MTN (09 December 2019 - #***) and their partner Mondo within 14 days (I returned the device) and I got confirmation that my cancellation is being processed (SMS ref.no.:#*** - 2020/02/26). When i wanted to put my number on prepaid (later in the year 2020) i was then told that i have an existing contract (my upgrade was not cancelled as promised) Their Call Center - Upgrades Cancellation line is never answered! I always go through the normal queries line and they transfer me. I sent an email to the Complaints section. I got an automated response and no other communications. Cancelation is still pending now!

I have been with MTN for many years, i dont even remember when i started... Its time to move on.

I am unhappy with the service i received. To say the least