Can login and check back the order. Press "Return" (something like Artikel zuruckschicken) button inside in the order. Tick the items you want to return and select reason (beim versand beschadigt) and input your reason (compulsory) . Press Continue (Weiter). Select refund (Erstattung) or replacement (Ersatz). Press Continue. Then print out the return form and send back the items...
Always in danger of buying SB from not only amazon but also any other online stores....