Hero Electric — Battery warranty issues of Hero optima cx electric scooter

I have purchased Hero Electric bike Model - Hero Optima CX Vehicle no/Chassis no/Engine no: MEPHEHPSA08AP1416 BIKE Reg no: -GJ01XB4078 from Dealer/service centre name- HERO E BIKE 2022-23, PLOT NO 905/7 SECTOR-28, GANDHINAGAR, GUJRAT, GSTIN/UIN - 24ADOPB4437H1ZP on October 2022 and within one year battery of hero electric scooter got faulty. Then I have gone to dealer/service center where he has given repair claim no. B86 and I have send continuous email (info.[protected]@heroeco.com) to hero electric company regarding battery problem issues but more than 3 month I have not received any solution from hero electric company as well as hero electric dealer