Consumer Redressal

I have been using the LG Tromm washing machine for the past 7 years with no complaints whatsoever. Now when the washing machine has stopped working, I had registered a complaint with LG Helpline (complaint no. RNA131105096757) on 5th Nov 2013. Post which the service engineer (Washim - 9619298392) came home and checked the machine and informed me that a part needs to be replaced. Post which I did not hear from him and called him tow days later to be informed that the part is not available and hence nothing can be done! I also received an SMS from LG Electronics that the service request was closed since \"part was not available\"! I then called up LG Helpline and was given the number of the service manager Mr Sachin (9833374206). He acknowledged the complaint (as per the complaint no provided) and promised to call in 2 hours time. When he failed to call me back, I called him several times but he refused to answer my calls. I had even SMS-d him on the same. But there has been no response