I received a defective / damaged item, I would like to repair / replace it I received an item with a damaged / missing part, I would like to order the spare part I received a wrong item, different from the one I ordered I would like to order a spare part My digital model suddenly stopped working The ESU DCC Sound decoder doesn't work / no longer emits any sound etc. How can I reset a decoder? The sound decoder has a crackling sound The engine idles and the locomotive does not move The locomotive jerks I followed your instructions but I couldn’t solve the problem, can I send the item for assistance? I would like to send an item for assistance