Hero Electric — Battery replacement not done since 2 months.

Address: 1221 mahantesh nagar

June 3 gave my hero elctric bike battery they told within 15 days new battery will be issue but still today august 1 they were lieing and not picking my call.. Only phone number number gives and saying main head office problem what can we do ???? Dear sir as a customer i m facing problem from showroom kindly solve my problem..