Mahanagar Gas — Service request for change in name

Address:

Mulund east

Sir/madam, my BP number is [protected] and CA number is[protected]. I had submitted my request for change in name only at Mulund East office with all requirements. From February, I am visiting Mulund East office every month to enquire about the change of name status. A standard reply is given to me that it has been submitted to our higher office and it will be done. Now it’s December month and it’s still not done.
This kind of customer service is offered by mahanagar gas? Is anybody responsible for such incidence? Is any responsible person is there to listen to customers