Unfair Eskom service

My name is Sewela Raletjena. Am in limpopo.In 2013 i app**** for eskom electricity which they finally planted in 2014.My complain come like this:In 2017 i received meter readings for the month which where higher that the whole term i had electricity with a bill of R21 000 something in 1 month readings and at that time my location was electrified so i went to apply for the charge to prepaid at around that time.They send a survey to my house and gave us a receipt of normal readings we know.Now eskom took the R21000 something matter to their lawyers. When i explain both do not take me serious.i even asked the lawyers to refer the matter back to eskom which they find impossible. My problem is now the issue will affect my ITC with eskom not assisting.The readings at the point of charging to prepaid are 008012 my meter no is A ********** 89.The bill for one month is also double the 008012 of three year.i have never paid R2000 for the month but now they claim i owe R21000 for a month. Thank you in advance!