This mixer does not stop in the least what it promises

I bought the hand mixer in March, would have a stronger than my little Krups. That's why I chose a 450 watt model. Apparently says but nothing about the actual strength. At slightly firmer dough brooms remained just stand with me. After two use it is now always easy from (loose contact). Although the thing looks quite nice and is really easy and relatively quiet, but at least my copy is actually scrap. Now have a complaint and hope that I get my money back completely. Bought on the Market Place in Telepoint24. To all those interested: prefer to buy another device and do not be fooled by the wattage or the design.