LG Electronics — i have called on LG customer care number multiple times but no one address the issue

I had purchased refridgerator of LG company. But now the compressor is not working and i have called on LG customer care number multiple times but no one address the issue. my product falls in the warranty period but still i have not received any assurance ffom the company. I had called on customer care number and was assured that any technician will come for service and repair but its been 7-8days and nobody has come for service. There was some problem before also but the technician had come and had changed some parts but still the problem persisits.