Hindustan Petroleum Corporation [HPCL] — name incorrectly entered

Address:

273, 19 C Main, I N Block, Rajajinagar, 560010

My name is Shrikant D Kanitkar, but when the gas connection was transferred to my name from my late father's name, the name was entered as Srikanth R. God alone knows from where they got such a different name and initials. When I contact my gas agency for rectification, they are asking for an affidavit, etc. This is the mistake of the company. Why should I incur unnecessary expenditure on making the affidavit etc? I want the company to change the name in their records and make the correction at their expense.