Butterfly Gandhimathi Appliances — Induction cooktop service

Address:

kurumbapalayam

I bought butterfly rapid plus induction cooktop from flipkart
it stooped working 3 months ago so i called service support
a service person came and said its ic problem and he removed circuit board and taken with him.said he will replace 2 to 3 days but he never came till now
i called him 5 times he tells every time he will come in evening or tomorrow but he never came. i also called butterfly service regarding this 2 times and they said we will inform and send service person but service person never came tiil today
its almost 3 months
kindly support me to resolve this problem