Deductions are not matching the per unit charge

Hi,

I am a resident of Radiant Prime Rose Apartment, JP Nagar, Bangalore. I use the electricpe to charge my scooty.

Currently the charge is Rs 20/unit. But for 0.39 KWH I am paying around 13 to 14/- which is absurd. It should be (0.39*20=7.8/-). The daily deductions are way high than the what actual deduction should be.

Can you please explain? This is just one example. It’s happening daily.