How to subscribe for MTN Unlimited Data PlanTo subscribe to the MTN Unlimited data plan, simply dial *567*59# and wait for response from the network. If you are eligible, you will be prompted to choose Options 1 or 2, just reply with 1 to subscribe for the Unlimited data plan.
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NB: If you line is not yet eligible for this data plan, you should get a reply to that effect when you dial the subscription code above.
Have you tried to see if your line is eligible or not? Let's have your contribution in the comments section. Enjoy!