That's because: * They don't have suppression set up * They're using a conversion tracking platform that is slow * They're testing the returns conversion hyp

That's because: * They don't have suppression set up * They're using a conversion tracking platform that is slow * They're testing the returns conversion hypothesis: you have expressed concrete intent, you have bought the product. If it has 5% return rate, you probably still want it, and there's a 5% chance they need to be in the mix.