Amaron — Warranty card not received and battery not replace by dealer

Address:

ANIL KUMAR, TEHSIL- NAWALGARH, DISTRICT- JHUNJHUNU, RAJASTHAN MOBILE NO 9509417557

Dear Sir,
We have purchased an amaron battery for inverter on 17.08.2019 from Shri Shiv Shakti Battery House, Nawalgarh, District - Junjhunu, Rajasthan. Dealer had given an invoice with mention 3 year warranty and not given any warranty card on time of purchase.
Now Battery is defective and we have contacted the dealer for replacement of the battery which got defective under warranty period, Now the dealer asked for a warranty card which the dealer never given to us.
We requested the dealer to replace the battery through the original invoice which was given by the dealer at the time of purchase of the battery, he refused to do any replacement and misguided us.
Battery MFG date is 07/2019 which also has not expired for 3 years So, please suggest how to replace our defective battery.
I have already emailed to you on 28.08.2021 but still no response so please replace the battery or issue duplicate warranty card
battery No - DFA2730T117800 AAM-CR-AR150TT54