LG Electronics — lg ac service is very worst

Address:

Nagpur, Maharashtra, 440015

I have bought before 1 year. Lg ac installation team is very un professional. They did not installed ac well and tubing is in hanging position not supported well. Causes my ac cooling is not properly. So many times complained lg but no any installation technician they sent till date. More than 1 months gone. They neither give me any receipt for buying cu tube.
Lg before was good but these days lg ac service is very bad and falling mode.
They looted more than 5000/rs on the name of instaltion and never give me a single receipt.