Indian Oil Corporation [IOC] — lpg // always got 4 kg less gas

Address:

Faridabad, Haryana, 121003

Dear sir,
I am jagadmbika prasad indane lpg user. My consumer number is cx3576272 and the agency name is mohan and mohan, faridabad 121003. I always received 4 kg less lpg from delivery boy because they show me weight via spring balance to my wife.
I always doubt on weight but because my wife received the lpg. Today i was at my home and delivery boy came with gas cylinder. He was assuring me about the weight.

But i weighted cylinder at nearby shop. The weight was 25.9 kg. The cylinder suppose to be 14.2 + 15.7 = 29.9

Thus i got that i always got 4 kg less lpg gas. I talked to boss of the delivery boy. He was not taking any responsibility about the weight. So i returned the cylinder because it was less by 4 kg lpg.

Sir, i am a very low earning man employed with a private company. Requesting you to take the action as soon as possible. And provide me the compensation for less gas in the past.