Have got many mails and whatsapp messages about mtn deducting there money while browsing some people were like "mtn won pay their fine" mainly it affect selected sims not all mtn subscriber even there some times that you will activate whatsapp data and other goody bags and they would be deducting your money for other apps, or you mistakely open your phone data without having internet data "this trick would work for you all" just send DATAOFF to 131 that's all even if you intensionally want to browse with your money it won't browse untill you send DATAON to 131 but if you're the type that always have data or goody bags like whatsapp data,facebook data and others you're good to go they would never deduct your money again thanks.

Let me try

On your MTN line, simply dial this code *131*201#. You will receive a message saying You hace successfully activated data suspension... Congrats. The problem is solved now. So whenever your mb finishes while you are browsing without you knowing it, your data access will simply be cut off and your credit won't bee deducted. In case you want to re-activate the normal settings that MTN will deduct your credit for browsing when your mb is exhausted, dial this code *131*200#. The settings will be reset and you'll be able to browse with your credit.

TechZuma