Honda 2 Wheelers India — Chain chakkar

Dear Sir,

I purchased the Honda CD110 DELUXE BS-VI on 18th April 2022 from your esteemed partner Dharti Honda. The issue is that the chain and sprocket (chain and chakkar) are making noise.
The services have gone through from time to time from your service station but the problem has been not solved yet. your mechanic said that "the chain and chakkar are faulty you have to spray them on timely and need to exchange them with the expense of approx 2000."

What is the meaning of timely services? Within one and a half years should it become faulty?

I need a resolution to this issue.