Sony India — Tv not repaired properly

Address:

Dhurwa, sector-2

I reside in Ranchi, I contacted your sony service centre regarding repair of my tv.
Your representative came and repaired my tv. My father is not technology friendly and I live outstation
He switched my tv mother board, nd even after continuous calling he is not visiting us.
He even didn't gave him fee slip, but charged 25000 for repair.
Kindly look into the matter.
Now my 50, 000 tv looks like 10, 000 tv .