The only issue I find with FOUR is that some stores don’t send a confirmation email after you buy. Like with Shapellx, FOUR takes care of payment but the store itself doesn’t seem to know about your purchase. You won’t get any order confirmation from Shapellx either. They just send you back to FOUR. This should really be fixed because it’s annoying and confusing. Then suddenly, your Shapellx order arrives, but you have no proof or email. What if I want to return or swap something? From what I’ve seen, NIKE is the only store that actually sends confirmation emails.