Amaron — Warranty card missing

Address:

Perumbil thazham(h)vaidyarangadi(po)ramanattukara 673633 kozhikode

My battery warranty card was lost, and my battery is not working, they ask me for warranty card, than they reples my battery.
ok, tell me now what can i do for this?

Amaron pro rider. 10121119
EA80241T114403

At the amaron service center in Kozhikode, they gave it on saturday ..14/11/20. To date, they have not received any significant response from their side