Sony India — Tv picture tube failure in one year of purchase

Address:

600020

We are loyal sony consumers for past 20 yrs. We purchased the model klv-24p413d about a year ago. On mar 13, suddenly the video stopped working — only audio was working. Sony service personnel visited & claim that we have to pay for fixing the problem!! The warranty copy is attached. It clearly states that
"without purchase invoice, this warranty is valid upto mar 2017"
We are shocked at the response of sony personnel. We feel that this is a blemish for bravia line of tv products of sony and we expect the tv to be replaced immediately by a new good tv set.
Kindly look into the matter and resole the issue asap. Thanks