Eskom account *****

My electricity was cut last year due to covid and losong our contract we could not afford it anymore so they cut the electricity which is fine but they kept in charging me network charges and fees from april to november because the field technision did not switch it off on the line or where ever im not sure...but my electricity in the house was off...so what ever was done on the line is not my responsibility but the field agents...i am.not a electrition so I assumed everthing was cut the right way because i had no electricity from April 2020....now the accounts dept says that i shouls jave report that the line was not cut off...i would like to know how I am surpose to know that if I dont go near the line as it is eskom s work and the elcetricity was off in the house...so i am sure the field agents responsible for that mistake...so i am not to be charged for a mistake eskom s field agents made