Panasonic — Panasonic refrigerator not working since last 2 months

Address:

PREET GAS AGENCY KHOPOLI 410203

I have purchased refrigerater of Panasonic REF347RSX1(1) On 04/12/2018 From Aarcee electronicsbut on 26 th may it stops working .after lodging complaint their technician visited three to four times .they sort problem of PCB & told me to pay Gas refilling charges Rs. 2800/- & PCB Charges 5000/- due to my need I become ready to pay that amount .
Technician fitted PCB & very next day it stops working once again means in last two month fridge was work for few hours only
now technician tells that PCB is unable to get repaired sonow what should I do because i have already make payment of 7800/- to the technician of co