West Bengal State Electricity Distribution Company [WBSEDCL] — High Bill

Consumer ID[protected]
Last Bill date 24/02/21, Reading Unites- 8972
Bill Period - March'21 - May'21
Amount - Rs.793, Paid On - 08/03/21
After That
Present Bill Date- 04/09/21, Reading Unites- 10331
Bill period- Sept'21 - Nov'21
Amount - Rs.10013.

Unite Consume - Present[protected]=1359 Unites
But WBSEDCL Billed 1009 Unites,
and 350 unites for June'21 - Aug'21 witch showing their web site but no one representative come for meter reading. They made the bill like mind.

if they billed monthly, my bill will be 1359 unites/6 month= 226 unites
Amount as First 102 unites @Rs 5.26 =536.52
Next 78 Unites @ Rs 5.86 = 457.08
Next 26 Unites @ Rs 6.73 = 174.98
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Total 226 unites Rs 1168.58 (Monthly)
For Six months Rs 1168.58*6= Rs 7011.48
But i have to pay more[protected]= Rs 3001
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if they billed quarterly, my bill will be 1359 unites/2= 680 unites
Amount as First 102 unites @ Rs 5.26 =536.52
Next 78 Unites @ Rs 5.86 = 457.08
Next 120 Unites @ Rs 6.73 = 807.60
Next 300 Unites @ Rs 7.23 = 2169.00
Next 80 unites @ Rs 7.32 = 439.20
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Total 680 unites Rs 4409 ( Quarterly)
2 Quarter = 2*4410= Rs 8820
But i have to pay more[protected]= Rs 1193
So, therefore i earnestly request to you i want monthly bill, if not possible they show me the rules o[censored]nite reading, i want to know monthly or quarterly! if quarterly, why they didn't come to take reading unite. Not six month at a time and cloud not pay extra amount .