Yes you can. To change passcode follow the simple steps below:
- Dial *190# and press send
- Select option 3 “My Account” and press send
- Select option 2 “Change Pass code” and press send
- Enter your current 4 digit pass code and press send
- Type in your new 4 Digit pass code and press send
- Confirm your new pass code by entering it again and press send
- You will receive a message stating the pass code has been successfully changed.
- Dial *190# to top up.