I just brough one from Hung Hom萬寧 (30 mins before) you can go to the manings near your home and ask there staff to check for you which shop have stock (only if they are out of stock) and ask them to hold the stock for you
my boy started to drink abbott's from 2nd month.. then I started to stock up the 400g samples. from no.1 to no.2 and now.. I am buying no.3 already (still drinking #2)
if you join their club, you can have some coupon, e.g. buy 1 get 1 free 900g coupon. Then I asked other moms who got the coupon to buy it for me! also, all the free 400g sample go to me too.. =P
but, it cant be apply to no.1 but still, you can find 400g in bk too