Panasonic — LED Panasonic TV 43 inch

I purchase Panasonic TV sep 2020 year & along this I purchase 3 year extended warranty Scheme From Sargam Electronics A-1 Kanti Nagar Extn, Delhi -110051. Due to Sargam Electronics company shut down from shahdara, their is no alternate option to contact with them and all contact no. of this company has been switch off. Plz help me to use my Extended warranty scheme from Panasonic company as he is denied for Service, they as asking for charges.
Kindly look and resolve.