How can I block access to internet on my phone.

To block internet on your cellular:
-       Dial *123# on your phone.
-       Enter 6 to allow or to block Internet.

Please select:
1.     I agree for Afl. 2 per MB to be deducted from my account on the basis of “pay as you go’.
2.     Or block internet on your device.

-       Enter 1 to confirm.
-       You will receive the following message: Your request to allow Internet data to be charged from your prepaid credit is being processed.

You will receive a text message confirming your choice.