Singer India — Not working tailoring machine

Address:

Maliakal House, Annanadu, Chalakudy (Via)

I purchased a merit sewing machine from CSD Canteen during 2018. It was not working for last 06months. I complaint numerous time but no action has been taken by customer care team of singer India Ltd. Every time they assured to send mechanic to rectify the defects. But no one was visited so far. Really pathetic the service of singer India ltd.
Hope you can understand my problems and difficulties