First you must have a base data plan. Then follow the steps as below:
Step 1: Make sure you have base data plan (high Speed or Unlimited data plan)
Step 2: Go to Power Pass page and Select 12-Hours Power Pass
Step 3: Key in Promo code TERKEJUTRM7
Step 4: Select your prefer payment method to make payment.
You will be received notification on successful purchase and back to Dashboard * Your Usage* to check.