How do I unsubscribe from Caller Tunez July 15, 2022 22:24 Updated Dial *1355# or send Unsub to 1355 to unsubscribe to the service Related articles I have fully registered by sim card but my calls are barred. What should I do? What are the packages for the datazone bundle? What is MTN caller tunez? How do I activate Call Divert? Does the datazone bundle expire? Comments 0 comments Please sign in to leave a comment.