DEFY disappointment

It's been 2weeks since the query has been placed and still no feedback on when the parts will arrive I haven't been able to cook or use the stove.when I call I get told that it's been escalated to the service manager whom never provides feed back. The parts are not available so what am I suppose to do.I need my stove fixed and no one seems to be willing to help or resolve this issue and I can't cook or feed my family.