State Bank Of India [SBI] — ecs payment of mgl bill was not done and when i made a d/d, it was handed over to my staff, without signature

Hi, last week, my office recd a bill from mgl with a penalty of rs.600/- because the previous bill payment did not go thru" ecs. I wrote and emailed a letter to sbi, govt. Colony branch, bandra east asking why the ecs did not happen. Meanwhile, mgl kept phoning to say if we did not clear the two bills, the gas supply would be disconnected. We were given a half day notice to either pay by a demand draft or have our gas supply disconnected. We rushed to the bank to get a demand draft made. That was the day when mumbai faced bad weather so the dd was handed over to my peon without signing. I rushed to the mgl office with the dd only to discover after reaching mgl, that the demand draft was not signed and so invalid. Mgl understood that we were not at fault so they assured me that they would do the needful and asked me to cancel the dd. My staff went to the bank to cancel the dd today and we are shocked to know from the manager that an amount of rs.325/- will be debited from our account towards cancellation charges. My question is why should we be penalised for no fault of ours???