Eskom Bill that is charged so Rediculusly

My name is Mmalethu Kotu I am a child of the late Helen Semola Kotu who used to stay at this address 1395 zone 16 Ga-Rankuwa 0208. Account number *** My Mom passed on date 21 July 2020 at the age of 71 years old. She used to stay at her house with 2 children who goes to school and her helper. Her Eskom bills every month are ridiculous for someone who stay in Ga-Rankuwa at a residential house the bills are always have been more than R2000 for a pensioner and a widow. Since she passed on had to go throw every bill because in July I had to pay a bill of R3932.40 which I paid R4000 and the next day someone from Eskom came I explained the situation and he took pictures and told me they will correct the bill. today 29 September 2020 I called customer care to get the bill for August 2020 and was told it was corrected after paying the R4000 now we need to pay R959.60 for August 2020 I spoke to Egnas she opened a case gave me a reference number *** and she explained that the bill has been corrected that is the reason for August we need to pay R959.60 we don't own a shop or selling anything to be paying such bills. I am so disappointed because all this years My Mom was being put to pay so much for electricity by Eskom as if she own a big house with a swimming pool. I need all this bills to be corrected Will not pay R1 till this matter is resolved. This is abuse of the highest to my late Mother.