Is there anyway to subscribe to 5 + items to get the 15 off and then only purchase 4 of the items or even 1 just so u. Can originally get 15 %off? Does it work that once you put 5 or more u get 15%off and then before any of them ships I cancel 4 of them will the 15% price stay clipped or only after I have them shipped does the 15% stay? (and that means I have to be busy with 4 items returning ot using! Tia