Please if you know how to cancel voice mail, be of help
Seems like MTN has many additional services to offer and many of them become spamy or irrelivant to people. They also lead to extra expenditures and make your mobile services more expensive. Here is a quick tip on how to do it through SMS stating OFF on the following number: ##002#*. You can also click on the link below to learn 4 ways of turning extras off, inluding MTNplay or MTN Learn English.
You can learn more on this sumject from this article How to stop MTN play or learn English messages - 4 best tips for Nigerians
You can go online and easily find instructions on how to activate MTN voice mail. They are clearly laid out on the MTN website and on other resources. No wonder, cause they charge extra fees for this service. But finding an instruction on deactivating is much harder.
Here is what you do. You can either go to the MTN menu on your cell phone and use it to stop paying for voicemail and turn it off. Or you can send an SMS stating OFF on the following number: ##002#*.