Punjab State Power Corporation [PSPCL] — unnecessary charges added on bill

Account no .Z38NG415841M
Bill no.-9429
unnecessary charges added in bill like sundry charges ..and arrear of current financial year amount 320 ..why all these amount has been added. there were no arrears in previous bill then why such amount is added.. accprding to current bill ..the bill amount is 11 rupees per unit i have to bear..please tell me why all these unnecessary amount is added .and i have one request dont add unnecessary charges next time in my bill.