Punjab State Power Corporation [PSPCL] — charged extra against the units consumption

Address: Firozpur, Punjab, 152001

My total unit consumption is 386 units and the billed amount is rs 2184 and after adding taxes and cess the final amount was roundabout rs2300. But pspcl charged a total of rs 6040. The pspcl claims its a adjustment charge and as i can see i have paid full amount of my previous bills i checked till march 2017 and i had paid full amount of all my bills generated earlier. Also pspcl dont have any person or customer grievances which can help us solve the problem.