[Blox13]

It does work if you do it correctly and certain conditions by the retailer are met (courier they use, the method you use to pay etc.). It's helpful to know how to SE someone over the phone/chat if required (but not always).

It doesn't work with every store (although it works for the majority) but people who claim it doesn't work in general I feel haven't tried it or don't know how to do it correctly.