Gujarat Gas — Service no provided - unethical behaviour

Gujarat Gas connection is installed in our society and application for starting the service is also given but no response. So, I filed a complaint in the customer care department of Gujarat Gas but they are not giving satisfactory answer, just saying that an executive will come to your home as soon as possible but no response as of now. We're facing difficulties in day-to-day routine work without supply of Gas, which is an essential need of every household.
Kindly help!