Vijay Sales — led tv not having vocal

Address:

Sant Sawatamali Vegetable Market, Santoshi Mata Rd, opp. Bindu Tower, Kalyan West, Kalyan, Maharashtra 421301

We have purchased led tv from vijay sale as it is their own local brand along with warranty for three years. There is some speaker problem occurred. We raised complaint regard about vocal issue which is not working on. Till date my issue not repaired..
Vijay sale is not satisfied the commitment and not getting proper reply from them since they are not taking responsibility of default product.
No one is answering. When i call vijay sales customer care... Replied that the said part is available at branch office and need to check with technical team or within two days technical would call back you and let you know soon. But from that date to til date it is not rectified..
Today is 13 day completed yet speaker problem not repaired.
Engineer said that he is sick and unable to visit. Another person may be visit in place of him.
It was a bad service given by vijay sale & its team.