Blue Star India — Air conditioner problem

Address:

Alwar

I have purchased ac in may 2020 and in 2021 April this ac start displaying DF error, sound issue and not cooling after that so I called a technician for ac service I told all my problems to him and he said when again problem displayed call me so I did and he came and raise a complaint and said it will cover in under warranty but now he said it’s out of warranty and all the parts will chargeable what should I do now this ac not even work for 1 year it’s a ridiculous thing ever happened now they are not even showing any respond please solve this