I think we should start expecting the exclusion from site-wide offers for cashback card in the coming days.
It's simply unsustainable offering 5% for every transaction in the first place, nevermind 15! Ideally one must always have cashback card for non-sale days, and another card for site-wide sales. This is why I am having second thoughts about closing my SimplyClick card if I ever apply for the cashback card.