I have been trying to set it up for often used items and to qualify for the 15% discount. I find it tricky because some items I use more often than others but you have to have at least five items for the discount.
Easiest way I have found so far is to only have a single delivery every four months. Problem I run into is that on some items, I can select the quantity AND the frequency. Other items only allow the frequency. Not sure if I am doing something wrong.
I have a work around but it is a pain. If I need more than one item every four months, I add it twice. Any one know why some items do not slow the quantity to be selected?