Bajaj Auto — Bajaj avenger-non availability of battery

I have availed a new bajaj avenger bike in 2018.
Within 2 years the battery got exhausted.
The bike was handed over to KVR BAJAJ, TALIPARAMBA, 670141., three weeks back.
Till now the problem was not rectified due to non availability of battery.

This is really disappointing.

I am in great trouble.
If it was informed at the time of purchase that spare parts won't be available, I would have opted some other bike.
Kindly look into the matter.