Panasonic — Complaint about washing machine

My panasonic washing machine is not working well and product in under warranty I contacted panasonic customer care more then month ago first of all they delay in visit my home and then ones engineer visit he said we have to order a Spairpart and then I am still waiting for the spair part I didn't receive the part they don't contact me manager didn't answer and if I call they said you will the spair part please wait I'd wait more then month they don't give a good service to me I'd call them 100 times nobody take customer's problem seriously.