2for1Refill
Received this Buy 1 GET 1 FREE code via member email. The site offers free shipping over 70$. Add 6 refills in cart then apply the code you got $36 plus free shipping.
Cheapeast price I found on eBay for this new designed Powerfibres Refill (with red and white fibres) is $33.00 for 3, plus $9.95 shipping cost. http://bit.ly/2vGN1rv
Vileda also has promotion for the Easy Wring & Clean Spin Mop + 2 Bonus Refills with price $49.99. Add 2 more refills you got free shipping.
http://www.vileda.com/au/ewc-3.html
Woolworths online sale at $38, but from the photo looks like it is white fibres and no bonus refills.
https://www.woolworths.com.au/shop/productdetails/747426/vil…