Lloyd — Asking 15000/- in spite of Warranty Period

Address:

Hall Bazar, Amritsar, Punjab -143001

I purchased LLoyd 32" Smart TV on 1.4.21 in installments financed from IDFC First Bank. Shopkepper will only provide cash memo once timely payment of installment is completed.
My TV screen became white and I filed a complaint as Llyod TV has 2 year warrenty. LLoyd sent their service person who only in his visit took 350/- and told to take TV to service station. We truely said the service person that after completion of TV installment we forgot to bring its cash memo and shall bring it in some minutes as the shop was not far. The Service person asked us to bring the cash memo to their center alongwith TV.
We took the cash memo and TV to center and after 0ne day they demanded 15000/- for repair saying that the cash memo was fake. We even showed them the Bank Statement, But they behaved very very rude with us.
They have kept the TV with them for one whole day. I fear that they might have changed some parts from my TV till now.
I want repair of my TV on Warrenty.