If it's not "too much" ask, it will be better to get EXTENSION 7 days than FREE BAG.
Do you want to know why ?
It's because players get used already the free bags (from the rewards when you level up). Then after 7 days, they are blocked (if you don't buy new one from item mall).
I think (my opinion, tell me if i'm wrong), they can't use anymore "new" free bag because it's already done on the 3 tabs.
By the way, thanks for take care of the community. I see the efforts you are making now for us and we appreciate.