Thanks to Pricehipster I found these toilet papers at a bargain price from Harvey Norman with delivery only. $3 for 16 pack of 10cm*10cm 180sheets toilet papers seems to be very very decent price. Shipping shows $10 from my location (this may vary) but having Shipster makes the deal a true bargain.
The maximum quantity I can put in is 6 and this may vary so please try out your self. I put 6 packs and some $1 batteries to meet $25 limit to be eligible for Shipter free shipping.