I´m just not sure about the rules of using the 30%off coupon from monthly challenges. I don´t know if it´s right. Just to clear it - it´s OK to use it on products that are already discounted, if I don't have the special subscriber discount, yes? And maybe silly question - but what means "store-wide sale"? Is that also sale on new products or not? And is OK to use the coupon e.g. for the Christmas in July sale or when there is a sale on the whole categories in the shop?
A store-wide sale is when the whole entire store (excluding certain select products) is on sale. This happens 4 times per year. Currently these are in January, iNSD weekend (first Saturday in May), August, and DSD weekend (first Saturday in October). I don't know how the rules are outlined for the monthly challenge coupons but I believe they should work for the currently active sales and any other discounted products if there was not an exclusion specified in the info you received with your coupon. Hope that helps.