Beetel — beetel cordless phone, model: x66n black, charging adapter faulty.

Address:

Jalgaon, Maharashtra, 425001

Hi,
Bought my beetel cordless phone, model: x66n black, on 31/05/2018, used for couple of hours and the charging adapter went faulty and since then it is out o[censored]se, after complaining the seller and service center i am being instructed to buy a new charger costing 350 inr, please suggest why should i pay for this, if its the charger that is of inferior quality, looking for help.
Your reply awaited.
[protected] - amrit enterprises, jalgaon

Attached purchase bill for same