The problem is the manufacture is in china not in Germany. Chinese have no return policy nether linuxsat and will not entertain anyone once you have spent money. Trading standards is the answer for you. Wright them a recorded delivery letter. Send a recorded delivery letter to Mr NZ Linuxsat (aspleysatellites) Their address as follow
Signal Master Satellite Ltd
Unit 1A Bridge Road
Signal Master Satellite Ltd -
They will take action as well through their lawyers. Hope you get this sorted out M8. Keep us informed on the outcome.