Sony India — tv size is not the same

Address:

Papum Pare, Arunachal Pradesh, 791111

I had purchased sony bravia led klv 32r482b in 2015. The tv had occurred display problem in 2017. So i took the tv to sony authorise service centre at itanagar for repairing. They told me that product of my tv model has stopped but replacement could possible and they demanded 19000/- so i paid it. But the replacement tv i got is not 32 inch but 28 inch. Where to complain so that i get 32 inch as was mine.