There are 2 types of validity - Line Validity & Internet Validity.
For NEXT, all Internet purchases now support Always Active. This means that Internet purchases will now extend both your Line and Internet validity.
Yes, reload can extend your line validity.
Yes, you can buy the Internet and extend your line validity if you have sufficient balance. Even if your status is in R1 (barred), you can buy your favourite Monthly Internet via UMB *128#.
Yes, the Monthly Active Plan comes with Always Active and can extend both Line & Internet validity.
Yes, on-demand Internet now comes with Always Active and can extend both Line & Internet validity.
No, the Monthly Plan Booster follows the expiry date of your Monthly Active Plan.
Always Active means that your main line validity will always be extended to match the subscription validity of your plan.
For example, if your account validity expires tomorrow but you subscribe to a Monthly Active Plan today, your account validity will be extended by 30 days instead of tomorrow.
All Monthly Active and On Demand Plans support Always Active.