No, the quota for each plan under the CelcomDigi Postpaid 5G Plan are only for individual line usage. However, do note that the new CelcomDigi Postpaid 5G Family Plan comes with at least 90GB quota and you have the option to choose a plan with unlimited 5G quota.
Yes, you are required to change all your lines to CelcomDigi Postpaid plans.
At the moment, Digi Store Online does not support change of plan for accounts with supplementary lines. Please walk-in to the nearest Digi or Celcom outlet if you would like to change your plan to the new CelcomDigi Postpaid 5G Plan.
You will enjoy the supplementary line discount right away on your current bill cycle when you sign up on CelcomDigi Postpaid 5G 160 and above plans.