Ok I got confirmation, if under Self Service plan, if the usage is more than 10l/day and filters exhausted within 6 months; technician will need to be dispatched for checking and customer have to pay RM 70 labour charge (inclusive of filter change and checking)

If using the technician care package, then no additional charges.

The reply i got is slightly different, mainly LG HQ is only concern about whether customer request extra filter is due to worse than expected water quality; or, heavy usage / abuse.

If former (bad water quality), LG is willing to send extra filters without any charges; if request too frequently, LG may send technician to check whether it's the latter

If latter (heavy/abusive usage), I'm not sure whether customer can pay extra to have more frequent filter delivery, the machine recommended usage is 10L per day or 5 ppl per household

I use about 5L/day and also 2 of us, so still can use a bit for rinsing while stay within the 10L/day recommended usage, but we personally don't use it for rinsing

I'm not sure what's the difference between 1800L capacity and the NSF capacity 200 gallons, anyone has experience?