Hero Electric — Battery charger not working.

I purchased hero optima cx er dual-battery, one battery is not working well, so I already complaint the hero electric show room 3 month before, but still now not solved my complaint. Kindly do needful as soon as possible.
I am buying an hero optima ex er electric scooter from Ajay Moters, Sant Nagar Burari, Delhi-110084 on 22/09/22.
After 1Year 2 months the battery charger not working. The dealer suggests replacing the battery charger and ordering it. But even after 2 months nothing is happened. When contact the dealer, they replied that the battery charger does not get from the company and suggest waiting.
Therefore, I hope an early proceeding about this mater from the company or take return the vehicle and encash. Otherwise, i am forced to take legal remedies.