Step 1. To upgrade your 2G data plan, first dial *100#send.
Step 2. Select 'Data Plan' and press 'Send'.
Step 3. Select ‘Purchase a 4G Plan or Add-on’ and press 'Send'.
Step 4. Select which 4G plan you would like to activate and press 'Send'.
Step 5. Once you have selected the plan, you will receive a pop up message advising you the plan change is underway.
A text message will confirm that the plan has been activated, and you can proceed to use your data.