Sansui India — Service for refrigerator

Website:

Flipkart, sansui

I purchased a refrigerator from Sansui through flipkart bearing invoice no.FADJ[protected] on[protected].but from few days i.e. 25/5/2023 the refrigerator is not working/cooling.
I contacted Sansui team and they registered my case. After that one technician was visit my home and after look through the refrigerator he charged an amount which I had paid to him. He told me that one part has required to fix the refrigerator for that I have to pay Rs.3900. I also pay that amount to their bank account. Since then they stopped receiving my call, not responding, no update, it's been 1 month passed yet the refrigerator is not fixed by them. Just after one year o[censored]se after the warrenty period gone the refrigerator is stopped working and for fix the refrigerator no proper response is received from them.