Account billing frustration

The manner which Telkom treats its customers its so frustrating l had a router and a cellphone contract which l took 2016 and it came to an end last year October 2018, l then went to the closet Telkom shop and one of the assistant assisted me with the process of cancellation he mentioned that l must go online and cancel then l went online register and l tried to cancel it and the message from online was there is nothing under the profile created to be cancelled so l was under the impression that the contract is automatically cancelled, then l had a debit order with the same amount l was paying under the contract that l thought is cancelled mind you l was nolonger using their services so basically am paying for something that am not using is it the punishment or are we just stupid to be treated like this? Why do we have to suffer as in like we are getting this money from trees? then l went back again to the same shop at mall of Africa this other gentlemen assisted me and he said he can be able to cancel the cellphone line and the router he cant cancel it l must go online and cancel it like really? then l refused saying that he must cancel everything then he asked one of the ladies from the shop to assist me with the cancellation of router and she did and the case numbers l got ever since are: ********** 5, ********** 9, ********** 0 and the last case number it was for the last router l took out in November and which states that my account has been suspended due to collection case number ********** 9 and this account is having different refence number to the old account it has been up to date as it is going out of my account everymonth so is kinder off frustrating and irritating to be always going to the bank and reverse the transactions and the sad part today the 15 of January 2019 an amount of R939.00 went off my account and l have to go through same process of reversal of transaction? then l contacted Telkom accounts to express my frustration to kind of get the breakdown of this amount l was told that there is a penalty fee that you need to pay for unsuccessful transactions then it goes back to what am l paying for as am nolonger using the service the service that am aware of is the one l took in November year 18, and to my surprise the lady by name of Ntombizonke Nomcebo Nkosi who was assisting me said she cant break it down for me what she can do is to apologise like really? can someone from the top kindly assist me with this matter as l don't want to find my name being dirty because of poor Telkom service.