LG Electronics — Fraud doing with consumer

Hi
made my service done on 19 march 22 in which my coil was changed in inner unit and gas was filled
within a month gas was released from unit
so i complained again on 22 april
two times engineer was visit was done and they told outer unit is corrupt and needed to change which will amount to 8300 rs.I had a doubt so asked them to wait
next day i personally called someone from lg and he said all is okay ..The valves were left loosened so he made it tight and gas was filled and till date ac is running fine
for this i made a complaint to area cco ruchi yadav but she didnt took any action
again i made a complaint to amit rathore{[protected]} whose number i got from your mail said someone else named manish gupta{[protected]} is incharge of our area...I have asked both of them to refund my gas amount as it was theirservice man fault who left valves open an d2 more persons who visited to see the unit...
I am just mailing you as digitex aircon is doing fraud with consumers please note it down and help me in getting my gas amount refund..
I am writing you as ...No action is taken by them till date
they are only asking to not to complain asthey said no refund will be done

please take action against them..Its serious matter
thank dolly